What's a good Ph Level?

[MrMashashin]

This is kinda stupid but I really don't know what a good Ph level is for a tank.
My tanks are curently at about 6-7.5, somewhere in there.

 

[Teelie]

They should be around 7.2 or slightly above or below that for the fish you have. The cichlid one should be around 8.0

 

[MRshouty]

7.2 is the PH of water so thats a good PH level but like Teelie said it could depend on the fish, but it shouldn't be way acidic or akaline like from 6-8 is a good margin.