" wrote in message roups.com...
Hmm, well that's curious. Your tank seems to be in order.

Are you serious? If the pH of the tank is 8.0 and the water supply
has a pH of 7.4, each water change administer a pH shock.

Also, 3 danios are too few. I have 9 of them in my tank. They are
schooling fish. Your danios were probably in a constant state of
unease being in such small number. Since you have a small tank, get
one Gourami or some other solitary fish. Swordtails and platies are
also okay since they don't seems to be too concerned about being in
small numbers.

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