I'm pretty sure I killed most of BB in my canister filter when I cleaned it. I've been doing daily water changes for nearly a week now and so far no fish / shrimps / snails died (fingers crossed). I also bought another filter (HoB) to prevent this issue in the future.
Am 1ppm, Nitrite 0, Nitrate 40ppm then I did 60% water change + prime and stability. No feeding
Am 0.5ppm, Nitrite 0, Nitrate 40ppm then I did 50% water change + prime and stability and feed a small amount.
Am 2ppm, Nitrate 0.25ppm, Nitrate 20-30ppm then I did 75% water change + prime and stability. no feeding
Am 1ppm, nitrate 0, Nitrate 10ppm then I did 80% water change + prime and stability. no feeding
Am 0.25ppm-0.5ppm, nitrate 0, Nitrate 10-20ppm. I did 20% water change + prime and stability. no feeding
Im on day 6 now, just wondering if I should feed the fish today? How long can the fish survive without food? Also, how come the reading for nitrite is 0 and nitrate 10-20ppm? Does it mean that BB that convert nitrite to nitrate are still exist?
My stocks in 49 gallon are:
13 Lambchop Rasboras, 13 Neon Tetras, 7 CPDs, 9 Corydoras Habrasus, 4 Otos, 15 cherry shrimps and 4 nerite snails.