Aquaponics Water Change: Do You Ever Need One?
Do you need an aquaponics water change? Usually no, because plants use the nitrate. Here are the sourced exceptions: nitrite, sodium and dissolved salts.
Aquaponics Topping Up Water: Why It Concentrates
Aquaponics topping up water is not neutral. Evaporation leaves minerals behind, top-up water adds its own, and a logged meter spots leaks early.