Description
Product Overview
APT 1 Zero by 2HR Aquarist is a concentrated daily fertilizer made for planted aquariums. The formula supports strong growth and vibrant color without extra nitrates or phosphates, making it ideal for new tanks or heavily stocked aquariums where fish waste already supplies a steady source of nutrients. In a fish-heavy setup, APT 1 Zero provides essential macronutrients for balanced plant nutrition while helping to minimize algae issues.
Key Benefits & Target Deficiencies
Delivers 5.5% soluble potash, magnesium, and triple-chelated iron for critical plant uptake.
Prevents potassium pinholes, yellowing, and pale growth.
Invertebrate-safe with no dangerous copper concentrations, safe for shrimp and snails.
Promotes vibrant pigmentation and cellular strength without fueling algae from excess nitrates.
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
Nitrate & Phosphate-Free Liquid Plant Fertilizer
Product Size
300 ml
Estimated Yield
Lasts ~3 Months in a 30 Gallon Tank (YMMV)
Guaranteed Analysis
Soluble Potash (K₂O) 5.5% | Magnesium (Mg) 0.85% | Iron (Fe) 0.1% (0.1% Chelated)
Derived From
Potassium Sulfate, Potassium Chloride, 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 1 Zero 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 nitrate-free formula help prevent algae outbreaks?
By eliminating unnecessary nitrate and phosphate accumulation in the water column while filling potassium and micro deficiencies, plants thrive without feeding algae.
3. How does APT 1 Zero compare to APT 3 Complete in the 2HR Aquarist line?
APT 1 Zero provides zero nitrates and phosphates for new tanks or fish-heavy setups, while APT 3 is ideal for tanks with more plants and fewer fish, supplying an all-in-one formula to unlock the potential of demanding species.
