Regime
2Hr Aquarist (APT)
Philosophy
The method developed by Dennis Wong (2Hr Aquarist) under the APT (All-in-one Plant Treatment) line synthesizes modern plant physiology and contemporary aquascaping practices. The underlying philosophy asserts that optimal plant health and stability are the most effective natural defenses against algae. Instead of balancing multiple bottles, APT condenses macros, micros, and trace elements into a single, milligram-calibrated solution.
The core innovation lies in the deliberate management of nitrogen limitation in the water column to enhance red pigmentation without stunting growth. Through specific formulations like APT Zero (free of N and P, designed for tanks with nutrient-rich active substrates) and APT Complete, it induces a controlled, beneficial stress that stimulates the production of anthocyanins—the protective pigments responsible for intense red and orange hues. The system minimizes complexity while employing advanced chelators that remain stable across broad pH ranges to keep iron and trace minerals bioavailable.
Recommended nutrient targets
| Parameter | mg/L |
|---|---|
| N (NO₃) | 15 |
| P (PO₄) | 1.5 |
| K | 25 |
| Fe | 0.2 |
| Mg | 3 |
| Ca | 12 |
| B | 0.01 |
| Mn | 0.2 |
| Zn | 0.015 |
| Cu | 0.005 |
| Mo | 0.001 |
Dosing frequency
Daily or 3x/week (single product)
Water change
30-50% weekly
CO2
Recommended
Light
Medium-high (35-70 PAR)
Pros
- Single product
- Three variants for every need
- Clear, documented philosophy
- Excellent aquascaping results
Cons
- Premium product (higher cost)
- Less available in Europe
- Less flexible than modular approaches
Common Errors
- •Using APT Complete in combination with a fresh active substrate (like ADA Amazonia), leading to massive algae blooms due to nitrogen excess.
- •Dosing right after turning on the lights: it's better to dose before the photoperiod starts.
Advanced Techniques
- •Using APT Zero in the first 3 months to curb the substrate's nutrient release, then switching to APT Complete when the tank matures and the soil exhausts.
Ideal for
Aquascapers wanting simplicity and professional results with a single product.
