NilocG Aquatics
Thrive C
All-in-one nutrition designed for low-tech planted aquariums.
Freshwater plantedLow-tech plantingLiquid
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One gift per order. Campaign conditions apply. Orders with plants: free shipping from $199.99 in the main zone, or $399.99 to Newfoundland and Labrador, Prince Edward Island and Northwest Territories. No plants: Canada Post rates.

Why this formula for your plants?
- 01
Moderate needs
Formulated for lower-tech aquariums.
- 02
A measured supply
A lower NPK concentration than Thrive OG at the same volume dose.
- 03
A simple rhythm
Observe slower-growing plants over time; this fertilizer does not replace CO₂.
Nutrition you can understand.
Macronutrients
Nitrogen, phosphorus and potassium support plant growth.
Trace elements
Mineral nutrients needed in smaller quantities.
In the water column
Liquid nutrition available to submerged plants.
Your dosage, made simple.
Measure
1 mL per 18.93 L of actual water (5 US gal).
Add to the aquarium
Measure in millilitres, then add to the water. Pump output can vary by bottle.
Adapt the rhythm
1–2 times per week, adjusted to demand.
A dose for your aquarium.
Subtract the space occupied by substrate and hardscape. This is one dose, not a weekly total.
Guaranteed analysis
Nutrient contents and chemical forms
| Total nitrogen (N)Nitrate nitrogen | 1.24 % |
|---|---|
| Available phosphate (P₂O₅) | 0.53 % |
| Soluble potash (K₂O) | 5.06 % |
| Magnesium (Mg)Water-soluble | 0.29 % |
| Sulfur (S)Combined sulfur | 0.96 % |
| Boron (B) | 0.008 % |
| Copper (Cu)Water-soluble | 0.0001 % |
| Iron (Fe)Chelated iron | 0.32 % |
| Manganese (Mn)Water-soluble | 0.145 % |
| Molybdenum (Mo) | 0.0006 % |
| Zinc (Zn)Water-soluble | 0.0045 % |
Percentages describe the fertilizer, not a target concentration in your aquarium. Phosphorus and potassium are declared as P₂O₅ and K₂O.
Nutrient sources
Potassium nitrate, monopotassium phosphate, potassium sulfate, magnesium sulfate, iron DTPA, iron EDTA, manganese sulfate, boric acid, zinc sulfate, sodium molybdate, copper sulfate.
A routine that supports the formula
Observe new growth, keep lighting consistent and maintain filtration. Consider the nutrients supplied by feeding, substrate and other fertilizers before changing your dose. Follow the label on the bottle you receive.