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Thrive Caps Substrate Fertilizer

Thrive Caps Substrate Fertilizer

$15.00 Regular Price
$11.00Sale Price

I like to use Thrive caps in any of my tanks that have inert substrate and root feeding plants (active substrate with a lot of root feeding plants would also benefit from ThriveCaps) I place near the base of any area with root feeder or plants, keeping each cap about 5-6" apart.


ThriveCaps | Premium Root Zone Fertilizer Capsules | 60 Tabs


  • Substrate additive for planted aquarium


  • Contains Micro and macro elements as well as other minerals


New and Improved:  ThriveCaps are a very similar product to the previous ThriveTabs, with a few improvements.  These capsules dont require any additives to make them stick together which allows them to be smaller and more concentrated while still delivering similar nutrient levels.  Another improvement has to do with ThriveTabs causing clouding in some tanks.  I changed the formula a bit to reduce this.  I had a few people who had clouding issues with ThriveTabs try ThriveCaps.  None of them had the same clouding issues!!!!

ThriveCaps are nutrient rich capsules which are intended to be placed in the substrate of a planted freshwater aquarium.  They will provide a long lasting nutrient source essential for healthy plant growth.  Thrive Caps are a blend of dry Thrive mix, iron rich clay and mineralized top soil.


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.

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