Fish Dieing For No Apparent Reason

[dwarfgourami]

okay Ph is too high 7.8 is waaaay too high its for cichlid and braackish tanks. second 80 to 85 degrees fareingheit is waay too hihgt shouldb e 78 just IMO

From the OP's first post, this is a mbuna tank, so I don't see the relevance of this. Mbuna are African lake cichlids, so they like the high ph and they should be fine with a temperature of 80. Besides, even if it had been a common community fish, most common fish are absolutely fine with a ph of 7.8; unless they are suddenly introduced to it, it is unlikely to kill them.