Quote:
Originally Posted by blackghost
if i not wrong safe is a concentrated powder form of Prime?
sometimes too much also not too good.
maybe u can add revamp your filter media, add buffer media as well so the pH wont drop.
you could be suffering from old tank syndrome as well when the old tank has almost run out of buffering (KH has collapsed) and the pH is low. The result of the water change is that the new water has a higher pH and the free ammonia in the tank (nitrifying bacteria struggle to work in low pH levels) which was less toxic when the pH was low is now lethal as the pH rises.
if pH keeps dropping u do the big water change, the fish have to endure constantly changing parameters. stable parameters is best regardless neutral or low ph
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Thank you. I will try to get money and change new tank and also new filter media.