Tap water here is 100% free of ammonia, nitrites and nitrates.Mark wrote:If we have ruled out over-feeding, dead vegetation, dead fish, and crud in the substrate, what is it? Have you tested your tap water?
Very little crud in the substrate even at hard vaccuming.
No dead fishes (except that helodes above but she was taken out from the tank less than 5 minutes after death).
Very little dead vegetation. Few leaves sometimes. Nothing to be concerned.
Tank filtration system was never too good as now (available on page 1)
I can see two possibilities remaining:
Overstocking or Over-feeding.
Well, I have to admit that the tank is overstocked indeed but most fishes here are not bigger than 4 to 5" and ammonia and nitrites are always at zero ppm. Only nitrates are high.
Concerning over-feeding, well... I do feed them at least 3 to 4 times a day but always very small portions. All is gonne quick. I use Tetra Min Tropical Crisps, Tetra Cichlid sticks, Tetra Min Tropical tablets, live brine shrimp and live Enchitreus albidus daily as basic diet. Sometimes algae flakes, brocoli and chicken chest, both cooked a few minutes in boiled water.
Am I over-feeding?