Regime
PPS-Pro
Philosophy
The Perpetual Preservation System maintains stable nutrient concentrations through calibrated daily micro-doses without accumulation.
The idea is that daily plant consumption is replaced each day, with neither buildup nor deficiency.
Recommended nutrient targets
| Parameter | mg/L |
|---|---|
| N (NO₃) | 10 |
| P (PO₄) | 1 |
| K | 20 |
| Fe | 0.1 |
| Mg | 3 |
| Ca | 15 |
| B | 0.01 |
| Mn | 0.1 |
| Zn | 0.01 |
| Cu | 0.005 |
| Mo | 0.001 |
Dosing frequency
Daily (same dose every day)
Water change
10-20% every 1-2 weeks
CO₂
Optional
Light
Low-medium (20-50 PAR)
Pros
- Fewer water changes
- Simple, consistent dosing
- Great for low-tech
- Low fertilizer consumption
Cons
- Requires initial calibration
- Not suited for very fast-growing tanks
- Less documented than EI
Common Errors
- •(EN) Content pending...
Advanced Techniques
- •(EN) Content pending...
Ideal for
Stable low-tech or medium-tech tanks with moderate-growth plants.