Daily feed rate

Feed rate is % of biomass by temperature: <12°C — don't feed (carp can't digest), 12–18°C — 1–2%, 18–24°C — 3–4%, 24–28°C — 5–6% (peak growth), >28°C — drop to 2% (stress, low O2). Feed 1–2 times at a fixed spot — check it's eaten in 30 min. Overfeeding = wasted money + ammonia + disease.