Hi
My PH has gone from 7.5 to 5.5 recently , i have a 125 ltr tank that is in the process of being recycled as my friend washed my filter in tap water when i was on holiday .
My fish seem to be ok, but the low PH is a worry.
5 Neon tetras
5 Yellow talied guppys
5 Red Platties
1 Red Sailfin...