Quick tips

• Use the same unit for reading and target (e.g. both ppm, both dKH for KH, or both ppt for salinity).
• Volume = effective system water in liters (rough estimate is OK, but the cleaner the better).
• This only plans increases. If you are already too high, the tool will not offer a “raise” dose: use water changes, media, or advice from your coach — not more of the same product upward.