Calculator / PO4

PO4

Target: between 0.02 and 0.10 ppm (DSR).

Phosphate as food — do not force a large jump at once.

Your inputs

When enabled, the target is fixed at 0.16 ppm and the full dose is calculated in one go (not split over days).

Other parameter

In a reef aquarium

Phosphate is a nutrient for corals, bacteria and algae: it drives primary production and coral growth. Too little can bleach or stall growth; too much fuels nuisance algae and tissue issues. Rock and substrate also release PO4 slowly (buffering), and porous live rock can absorb phosphate as well — so tank readings may lag or jump compared to what you dose.

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.

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