Product Overview
APT 3 Complete by 2HR Aquarist is a comprehensive liquid fertilizer formulated for densely planted freshwater aquariums. Its calibrated Capstone Formula supplies complete nutrition, including nitrogen, phosphorus, potassium, magnesium, and triple-chelated iron, supporting strong growth and vivid color for even the most demanding aquatic plant species. Fully water-soluble for reliable uptake directly from the column, it helps minimize deficiency issues in mature or heavily planted setups.
Key Benefits & Target Deficiencies
- Delivers nitrogen, phosphoric acid, potash, magnesium, and triple-chelated iron for high plant uptake demands.
- Prevents nitrogen chlorosis, leaf pinholes, stunted growth, and pale new leaves.
- Invertebrate-safe formula contains no dangerous copper concentrations.
- Promotes vibrant pigmentation and lush foliage without fueling algae from imbalanced dosing.
Dosing & Application Instructions
- Dose 3mL or 0.1 fluid ounces per 26 US gallons or 100 liters of total water volume daily using the included calibrated pump, which dispenses 1mL per press.
- Apply this recommended dosage consistently at any time of day for low-tech aquariums with active aquarium soil.
- Apply this recommended dosage daily for high-tech aquariums with high lighting and pressurized carbon dioxide.
- Perform a weekly thirty to fifty percent water change to maintain clear water and prevent parameter skew over time.
Quick Facts
The specifications below outline the physical properties, chemical analysis, target uptake, and dosing requirements for this liquid plant fertilizer.
| Attribute |
Specification |
| Product Type |
All-In-One Liquid Plant Fertilizer |
| Product Size |
300 ml |
| Estimated Yield |
Lasts ~3 Months in a 30 Gallon Tank (YMMV) |
| Guaranteed Analysis |
Total Nitrogen (N) 0.75% | Available Phosphoric Acid (P₂O₅) 0.69% | Soluble Potash (K₂O) 4.52% | Magnesium (Mg) 1.10% | Iron (Fe) 0.12% (0.12% Chelated) |
| Derived From |
Potassium Sulfate, Potassium Phosphate, Potassium Chloride, Magnesium Nitrate, Magnesium Sulfate, DTPA Iron, EDTA Iron, EDDHA Iron |
| Form |
Liquid |
| Target Uptake |
Water Column Uptake |
| Dosage Rate |
3 mL (0.1 fl oz) per 26 US Gallons (100L) Daily |
| Livestock Safety |
Shrimp, Snail, and Fish Safe |
| Recommended Light Level |
Low to High Intensity |
| Shelf Life |
2 Years from Opening |
Frequently Asked Questions
1. Is 2HR Aquarist APT 3 Complete safe for freshwater dwarf shrimp and snails?
Yes, the micro-element and chelated iron concentrations are strictly maintained at non-toxic levels that are completely safe for Neocaridina, Caridina, and freshwater snails.
2. How does this balanced formula help prevent algae outbreaks?
By providing a fully calibrated macro and micro nutrient ratio, plants absorb nutrients efficiently to sustain steady photosynthetic growth without leaving excessive nutrient spikes that feed opportunistic algae.
3. How does APT 3 Complete compare to APT 1 Zero in the 2HR Aquarist line?
APT 3 Complete is ideal for mature tanks with more plants and fewer fish, supplying an all-in-one formula with nitrogen and phosphorus to unlock the potential of demanding species, while APT 1 Zero provides zero nitrates and phosphates for new tanks or fish-heavy setups.
