Top Rated Aquarium Plant Fertilizer for 2021 – A Comprehensive Comparison
If you are interested in finding the best aquarium plant fertilizer on the market and you don’t have the time on your hands to do the research on your own, you have come to right place. After a careful analysis of both the quality and the value offered by each of the products in this line, Dr. Fox has reached the conclusion that the NilocG Aquatics Thrive Aquarium is the one that stands out. This liquid fertilizer comes in a concentrated formula that will offer your plants all the necessary nutrients while also saving you storage space. If by any chance this product is unavailable, we also recommend the Seachem Aquarium Plant.
Our Top Choice
This concentrated formula is convenient and helps you save money while providing good overall quality. The content of one bottle is as potent as the equivalent of 5 or 6 bottles, which makes it an excellent deal. Also, you don’t have to use extra tools to ensure that you deliver the right dosage, as pressing the pump once will provide the necessary nutrients for a tank of up to 10-gallon capacity.
The nozzle spray seems to be quite powerful, and that may cause some splashing.
An excellent option for anyone looking for a good deal and a convenient solution.
This product contains a healthy mix of macronutrients, trace elements, and other beneficial ingredients that will help the plants in your aquarium thrive. It is sold in 1000-ml bottles, so you will have plenty of fertilizer for your plants, depending on how large your aquarium is. The plants you already have will grow and thrive, but you may also have the pleasant surprise to see new plants emerging.
You must be careful not to overdose, as doing so will lead to an overgrowth of algae.
You will get enough fertilizer packed with nutrients to last you for a while.
Also To Consider
This option contains all the fertilizer that your aquarium needs in a tablet form, and this makes it more convenient to use. The package features 25 tablets, and each one contains all the essential nutrients and iron needed for lush green growth. The fertilizer also contains boron to promote flower formation, and it will feed and stimulate beautiful blooms all season long. The plant food can be used for maintenance or startup gardens.
The fertilizer works very well, but there’s only 3.8 ounces worth of product in one package.
The 25 tablets are easy to use and come packed with nutrients that your plants need.
5 Best Aquarium Plant Fertilizers (Reviews) in 2021
1. Thrive Aquarium Plant Fertilizer All in One
What makes this alternative stand out from the crowd is the fact that it comes in a concentrated formula that can make one bottle of Thrive fertilizer the equivalent of 5 or 6 other standard bottles of other varieties.
This is why customers love this product, not only does it save you the incommodity of storing 6 bottles of fertilizers, but it also allows you buy just one 500ml bottle and have it last you a long time. It is extremely convenient and that shows in the approval and the satisfaction that the customers have with this product.
The design of the bottle also removes the need of having to measure your dosage as each pressing of the pump will amount to enough fertilizer to deliver all the nutrients necessary for a 10-gallon tank. The nourishing formula of this aquarium plant fertilizer will have you notice improvements in the appearance and growth of your plants from the first week.
Given that this is a concentrated fertilizer that has the same strength as 5 or 6 standard bottles, you can safely say that it’s a cost-effective solution for your needs.
The fact that it’s a highly convenient choice is proven by the many positive reviews it has, and by the fact that it’s one of the top choices among experienced users.
Thanks to the fact that the bottle is cleverly designed, you won’t have to struggle to determine the right measure for your aquarium.
If you decide to give it a try, you’ll see for yourself the many benefits this nourishing formula brings to the little ecosystem inside your home.
Even though this product is a highly effective one, you still need to measure the water’s quality to make sure that everything is in order.
You should also clean the tank whenever necessary, to prevent nitrate levels from rising too high.
2. Seachem Flourish 1000ml
The Seachem Flourish Aquarium Plant contains a rich assortment of important macro elements, trace elements and other nutrients that are designed to nourish, protect and keep your plants strong and healthy.
It also includes calcium, magnesium, and iron as well as other elements that have been proven to help aquatic plants flourish. Coming in a 1000ml bottle, the Seachem Flourish alternative is bound to last you for some time, this, of course, depends on the size of your aquarium.
Customers have immediately noticed that this product has improved the growth of their plants, besides of helping the plants get healthier and sprout new leaves, this product can also be beneficial in further encouraging the growth of new plants from the gravel or sand, it can really turn your entire aquarium into a living and beautiful ecosystem, offering your fish an environment where they can thrive while also making your aquarium stand out in a beautiful and pleasant way.
This Seachem formula comes with a wide range of elements and nutrients for your plants to be nourished and protected, for healthy development.
There is a large number of satisfied customers who have already tried this product, which says a lot about its quality, so you can rest assured that you won’t regret trying it out.
The list of beneficial elements it ensures includes iron, calcium, and magnesium, in other words pretty much everything needed for aquatic plants to grow strong in your aquarium.
If you want to enjoy the sight of a great-looking tank, this Seachem product is a great choice, especially given that it comes in a large pack that is going to last for a longer time.
The large pack might also be somewhat of an inconvenience in case you simply want to give the product a try.
Make sure that you read the details on its concentration, to use the right amount.
3. API Pondcare Aquatic Plant Food Tablets
The nutrient-rich tablets from API include boron to promote flower formation and iron for green growth. One package weighs 3.84 ounces, and it contains 25 tablets. Using the fertilizer is very simple since you only need to add one tablet for every gallon of soil and push it 3 inches from the crown of the plant and 6 inches deep into the soil.
It is much easier to work with tablets than to measure liquid fertilizer, and this is one of the reasons why this product has garnered excellent customer appreciation. Each tablet packs a lot of nutrients, and they’re great for all potted pond plants, and this includes bog, marginal, and hardy tropical plants.
This fertilizer should be used to feed plants once a month until the temperature of the water reaches 70 degrees Fahrenheit, and then you can start feeding twice a month. When the water temperature drops below 60 degrees Fahrenheit, you can stop using the plant food tablets.
Each tablet is filled with essential nutrients, iron for lush green growth, and boron to promote flower formation so that your aquarium can look more colorful than ever before.
API is a brand that is known for the quality it puts into each of its products, and this one is no exception, and you can trust it to create a hospitable environment for all fish and plants.
It can be used for all potted pond plants, as well as marginal, bog, and hardy tropical plants.
The 25 tablets are great for startup gardens or as maintenance, and they’re safe for all types of fish, as well as very easy to use.
The tablets can arrive smashed into a powder since the package doesn’t do a very good job of shielding them from impacts during transit.
You only get about 3.8 ounces of fertilizer, which wouldn’t be a big problem, were it not for the fact that the product is quite expensive.
4. Brightwell Aquatics ABACOL250 Koralcolor
Providing 14 essential elements for the well-being, the growth, and proper colorization of your plants, the Brightwell Aquatics 810086011483 is a product that will keep your aquarium flourishing and make it beam with life.
It can be used to establish beneficial water parameters in an aquarium that has just been set up or you can use it to replenish depletion of the elemental concentrations in aquariums that do not receive a water change often. It can also be used, of course, to re-establish the beneficial water parameters after changing a large quantity of water in your aquarium.
The Brightwell Aquatics 810086011483 is recommended for aquarium owners that seek a simple and affordable solution to all their requirements in the care and cultivation of aquatic plants by providing all the necessary nutrients.
This way, the Brightwell Aquatics 810086011483 can replace the need of using a wide array of products. Thus, you can have just one simple solution to nourishing and keeping your plants healthy.
What makes Brightwell Aquatics’ formula stand out among other similar fertilizers is the fact that it includes 14 different elements essential for the healthy development of aquatic plants.
As many reviews have already pointed out, the results it brings can be seen right away, and your aquarium is going to look great with healthy and thriving plants.
The versatile formula also makes this a fertilizer that can be used in more than one way, whether you want to get the right water parameters or simply replenish any substance depletion.
Brightwell Aquatics’ product is easy to use, being popular for its affordability and effectiveness among experienced aquarium owners.
The bottle might arrive with some damages, but in case the product itself cannot be used, customer support can help with a solution.
Make sure that you read the instructions provided, to add the right amount for the tank’s size.
5. API CO2 BOOSTER Freshwater Aquarium Plant Treatment
If you want a simple solution to the nutritional requirements of your plants, the API 579E can provide you with a carbon-based aquarium plant fertilizer. If you can’t afford or don’t want a CO2 system for your aquarium this product can give your plants the required boost to grow and get that healthy green coloring. If you have a CO2 system equipped to your aquarium but you’re not satisfied with the look and state of your plants you can still use the API 579E as the product is designed to work with CO2 systems without altering the pH levels of the water.
As we all know, carbon is an essential element used by aquarium plants during the process of photosynthesis and this where this product comes to play. The API 579E supplies a concentrated source of carbon that comes in two forms: CO2 and simple organic carbon compounds for your plants to absorb from the water and grow healthy and make your aquarium worth admiring.
This effective product provides everything your plants need in order to thrive, so you can enjoy a beautiful-looking aquarium inside your home.
As many previous buyers have stated in their reviews, a healthy dose of this product which ensures the right level CO2 has really made a difference in the plants’ growth rate.
The product is also convenient, as it’s really easy to use, so if want to give your tank’s balance a boost, you shouldn’t hesitate to take it into account.
You may also want to know that this formula also works as an algae preventive measure, and it does a really great job at this, according to many reviews.
You should carefully read the measurements marked on the cap in order to add the right dosage as, otherwise, it might hurt the fish.
One customer received the product damaged and leaked, but this is not something that happens often.
Our Comprehensive Buying Guide
If you have recently joined the ranks of aquarium enthusiasts and are visiting this site, you are now probably faced with the daunting task of finding a good alternative for fish tank plants.
Trust us, we are well aware just how scary prospecting the market to find the best fish tank plants fertilizer can be, and this is why we are here to help you. In order to ease the burden of you having to do all the research, we have gone through some of the most popular aquarium plant fertilizer reviews, from both customers and critics alike in order to help you discover the features that together can help you identify the best fertilizer for aquarium plants suited to your personal criteria.
Depending on the size of your aquarium you may want to consider the quantity of aquarium plant fertilizer you want to purchase. If you have a small aquarium going with a standard option might do the trick, but if you have a larger aquarium or you just don’t want to have to buy large amounts of product that could occupy a lot of space we recommend going for an aquarium plant fertilizer that uses a concentrated formula.
A concentrated plant fertilizer offers a more convenient way of using and storing your bottles. You can just buy one bottle that will last you for as long as 5 bottles of standard alternative.
Of course, when using a concentrated formula you must be aware of the dosage, due to how powerful the nutrients are, you have to carefully read the instructions so that you don’t accidentally overfeed your plants as that could be harmful to both the plants and the fish.
The main nutrient that plants need in order to survive is CO2, the nutrient that makes photosynthesis possible. The most affordable options for aquarium plant fertilizers are the products that offer a CO2 booster option, this means that they are meant to introduce additional CO2 in your aquarium for your plants to consume.
While this makes for a good option, you should be aware that plants also need macronutrients such as nitrogen, phosphor, iron, and magnesium.
If you purchase a CO2 booster or if you have a CO2 system already equipped to your aquarium you will still need an alternative that also gives your plants the macronutrients they require in order to thrive and grow beautiful and healthy.
Depending on the complexity of your aquarium decor you should be able to purchase good aquarium plant fertilizer without having to shell out too much money. It all has to do with the type of plants you have. They all fall into three categories: easy, medium and advanced. Easy plants are undemanding; they don’t even require extra CO2.
The medium and especially the advanced aquarium plants may require you buying some variety with certain macro-nutrients which can make the husbandry of advanced aquarium plants a more expensive endeavor compared to caring for less demanding plants.
The good thing is that even the choices that come with the most nutrients and essential elements are now becoming quite affordable.
Macronutrients vs micronutrients
You can look at aquatic plant fertilizers as plant food that can help the plants that you are growing in your tank thrive. They come in liquid, substrate form, or root tabs. While liquid fertilizers last longer, the substrate alternatives are simpler to dose.
Another aspect that you should know is that these products are specially formulated to contain various types of nutrients. To supply your aquarium plants with the right type of nutrition you have to invest in a product that contains macro and micronutrients. Macronutrients such as Potassium, Phosphate, and Nitrogen are usually ingredients that are often found in products of this type. Moreover, some formulas also contain magnesium, calcium, and sulfur.
Plants can use nitrogen that comes in various forms such as ammonium, nitrate or pure nitrogen. They use it for stem and leaf growth and, according to the botanists, nitrogen is an important part of chlorophyll or the green photosynthetic pigment that is found in plants.
Phosphorus is the name given to a mix of phosphorus pentoxide and potassium oxide K2O. It is utilized by plants when fruiting or when flowering.
Potassium is another must-have ingredient in fertilizers because it helps aquarium plants have strong roots and leaves.
Some of the most common micronutrients that you can find in an aquatic plant fertilizer are iron, chloride copper, zinc, nickel, cobalt and boron. These are all minerals that are essential for the health of the plant. However, differently from the macronutrients that are often found in root tabs, some of these nutrients are already present in the water and, thus, you do not need to add more of them.
Types of fertilizers
As mentioned before, if you want to buy fertilizers for your aquarium plants, there are a couple of options that you have at your disposal.
Liquid fertilizers are preferred by many because they dissolve fast in the water. The specialists recommend that you use this type of product with plants that feed directly from the water column such as Mosses, Anubias, African Water Fern or Java Fern just to name a few.
Fertilizer root tabs are most suitable to be used if you have substrate such as sand or gravel in your tank. Some tank owners argue that root tabs are the easiest to utilize, especially by novices. Plus, given that one tab lasts for quite a while, you do not need to keep reapplying it.
However, before you decide to invest in a product of this type you should take the time to analyze the ingredients that it contains as some commercial options do not contain all the nutrients that your beloved aquarium plants might need.
Pre-packed substrates are another popular choice among former buyers. These substrates are special soils that are formulated to contain substances that are great for plant health. In general, these alternatives are suitable or root feeder plants.
This sort of substrate contains quite a bit of ammonia that can be lethal to fish. This is why you have to take out the fish whenever you add it to the tank. You have to do so once every couple of years. Instructions are usually supplied by manufacturers.
Still, if you do not have root feeders in your tank, it might be best to consider one of the other choices that we have presented before.
How to use it?
Because every tank is different, there is no magical formula that you can use to determine the right type or quantity of fertilizer that you have to add. Some of the most important factors that you should consider are the type of plants that you own, the density of the plants, the overall capacity of the tank, the number of fish, the CO2 levels, the water change schedule that you have in place and the type of lights that you are using.
As expected, all of the before listed factors can make a difference when it comes to the quantity of fertilizer that you have to use and the dosing schedule that you have to opt for. The best way to go is to play around with the dosage at first before you determine what concentration works best with your setup.
On the one hand, if you utilize too little fertilizer, there is a chance that your plants will not thrive and, in some cases, even die. On the other hand, if you add too much fertilizer, you might have to deal with hellacious algae outbreaks. This is why you have to be careful with the quantity of fertilizer that you use.
To be safe, you should take a close look at the recommendations provided by the seller of the product that you have selected. To see the changes, it might also be a good idea to take weekly photos of the tank. This way, you will get to see whether or not you need to add more fertilizer.
If you are all about safe and natural options, and you do not want to invest in a product that was specially made to be used as a plant fertilizer, there is one alternative that you can try, as there is a type of dirt that can be utilized for aquarium plants.
Some fish owners also argue that regular potting soil can be used for the job, especially if the soil is rich in NPK. The one drawback of this natural counterpart is the fact that it is quite messy and, thus, it requires you to put in some extra work.
If you want to avoid all products of this sort, and you have the funds to back up your decision, you can, of course, buy a pricey filter that is biologically active.
Because they are carefully formulated to be used in fish tanks, most of the fertilizers that you can find for sale are safe for your beloved companions. However, before you utilize the product for the first time you should read the info provided by the manufacturer.
In some cases, the product that you have acquired might not be safe for some fish species. Yet, this rarely happens as most fertilizers are safe.
Easy Life USPR 0500 ProFito Plant Fertilizer
The EasyLife USPR 0500 is a universal aquarium fertilizer that will offer nutrients to your plants in a comprehensive concentrated formula that will give your plants everything that they require in order to grow fast, healthy and get a better coloring.
It does not contain nitrates or phosphates, meaning that you won’t have to worry about unwanted substances entering your aquarium as this aquarium plant fertilizer is designed to not only care for the plants inside your aquarium but also to keep your fish healthy and unharmed.
In order to make measuring your dosage easier, the cap of the bottle is equipped with gradations so that you don’t have to waste time finding or having to dirty other measuring tools around the house. The recommended dosage for this product is 10 ml of the product for 100 liters of aquarium water weekly. Depending on the size of your aquarium, the concentrated formula of this product makes for an affordable choice that will last you for numerous usages.
Given that this Easy Life fertilizer is a universal one, it offers versatility which also makes it a cost-effective solution that you can use to sustain multiple types of plants.
Those who have already given this fertilizer a try have noticed their aquatic plants are healthier and with brighter colors, as noted in the many positive reviews.
You should also know that the formula doesn’t contain phosphates or nitrates, so there’s little to worry about when it comes to having potentially toxic substances in the tank.
Besides ensuring the healthy development of your plants, this Easy Life fertilizer is also specially formulated to protect the health of your fish.
You should make sure that you use the cap to add the right amount of product to your tank.
You will be able to use the quantity for a long time, so it’s not really something that you can simply try out, given that pack’s size.
Laguna Once-A-Year Mini Fertilizer Spike
If you’re looking for a product that’s efficient and convenient to use, then you should look no further since this option packs a lot of nutrients to maximize the size and color of your aquatic plants. It is a high-value purchase since the six fertilizer spikes in this pack will last for one full year.
It doesn’t have a negative impact on water quality, and this means that your fish and other aquatic life in the tank won’t even notice that you’ve added the plant fertilizer. The well-balanced feeding formula in these spikes will turn your aquarium into a small patch of the ocean.
The spikes are built to be used for aquatic plants that have a root system contained in planting baskets. What’s more, while this option will provide maximum nutrients to beneficial plants, the fertilizer will not be absorbed by string algae, and that will help keep the aquarium clean.
The sticks are temperature activated, and this means that they will only release nutrients when the plants need them, namely at or above 50 degrees Fahrenheit.
When the spikes are activated, they will release a feeding formula that is balanced to maximize the color and size of all aquatic plants and is compatible with all planting baskets.
It doesn’t have any adverse effect on water quality, and the nutrients used in the spikes are non-toxic to plant life, fish, or other types of aquatic life.
You can move the fertilizer sticks around your tank if certain plants are not growing as fast or as well as others.
The manufacturer doesn’t do a very good job of explaining to users that they need to remove the clear plastic off the stake before inserting the product in the aquarium.
The plastic wrapper is also very difficult to remove without damaging the spikes.