Thrive Root Tabs Fertilizer

Thrive Root Tabs Fertilizer




Aquarium Thrive Root Tabs

Thrive Caps are premium root zone fertilizer capsules containing 60 aquarium root tabs

Thrive Caps is a substrate additive for planted aquarium

Thrive capsules contain Micro and macro elements as well as other minerals


New and improved Thrive Caps

New and Improved: Thrive Caps are a very similar product to the previous ThriveTabs, with a few improvements.  These aquarium root tabs require no additives to make them stick together, a feature that allows them to be smaller and more concentrated while still delivering similar nutrient levels.  In addition, contrary to ThriveTabs that caused clouding in some tanks, these new Thrive root tabs have an improved formula that manages to reduce the clouding effect.

Thrive Caps are nutrient-rich root tabs for aquarium plants designed to be placed in the substrate of a planted freshwater aquarium.  They will provide a long-lasting nutrient source essential for healthy plant growth.  Thrived Caps are a blend of dry Thrive mix, ironrich clay, and mineralized topsoil which makes them the best root tabs for aquarium plants.

Dosing Instructions

Place a capsule at the base of each plant or space out around the tank every 5-6″ in a grid pattern. Push down to the bottom of the substrate as far as you can. Replace every 3-4 months or as needed.

Guaranteed Analysis

Total Nitrogen(N) 2.57%
2.57% Water Soluble Nitrogen(N)
Available Phosphate(P2O5) 1.69%
Soluble Potash(K2O) 10.1%
Magnesium(Mg) 0.40%
0.40% Water Soluble Magnesium(Mg)
Sulfur(S) 0.31%
0.31% Combined Sulfur(S)
Boron(B) 0.014%
Cobalt(Co) 0.0006%
Copper(Cu) 0.0001%
0.0001% Water Soluble Copper(Cu)
Iron(Fe) 2.47%
2.47% Water Soluble Iron(Fe)
Manganese(Mn) 0.161%
0.161% Water Soluble Manganese(Mn)
Molybdenum(Mo) 0.00029%
Zinc(Zn) 0.0055%
0.0055 Water Soluble Zinc(Zn)
Nickel(Ni) 0.00035%

Potassium Nitrate, Potassium Phosphate, Potassium Sulfate, Magnesium Sulfate, Boric Acid, Iron DTPA, Iron EDTA, Ferrous Gluconate, Manganese Sulfate, Zinc Sulfate, Cobalt Sulfate, Sodium molybdate, Nickel Chloride, Iron Rich Clay, Mineralized Top Soil.

Information regarding the heavy metal content of this product can be found at Association of American Plant Food Control Officials

Returns Policy

You may return most new, unopened items within 14 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.