Why Fish Die In Home Aquarium. Fish die after a tank has been cleaned because too much of the cycled water has been removed. Some of them are closely related.
Ammonia nitrites and nitrates can build up fast in a marine aquarium. One fish will hide by the heater for a few days and then die. It will put them into a state of shock which can be enough to kill them.
When the fish owner put them in the fish tank.
Feeding food to hungry fishes is a good karma. Healthy active and playful fishes help attract wealth health prosperity abundance. Fish will also die after cleaning a tank because of the drastic temperature change. Control of ammonia and oxygen.