Why does white fuzz appear in my fish tank after water changes?

Question

When I change the water in my fish tank, after I add the appropriate amount of conditioner, a white fuzz seems to appear on all the objects in my tank, aside from the fish. I’ve had the tank for over a year now and it happens on all the water changes. My fish seem to be unaffected (I have 4). What could potentially be happening? Pet's info: Fish | Unknown - Fish

Angel Alvarado, LVT · Accepted Answer

It could be a bacterial bloom brought on by the water change or it could be micro bubbles caused by the agitation during the water change. Use only aged or conditioned water for water changes. This will keep ammonia levels down. Ammonia, in addition to being toxic to fish, will "feed" bacteria and cause a bloom.

Why does white fuzz appear in my fish tank after water changes?

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