i am thinking about buying another tank to get one or two firemouths. how big do they get i hear 5-6 inches? i want to get a 29 gallon would that be enough or would i need bigger? the only other fish in it would be a rubber nose pleco. can u put lava rock in with them or will it raise the ph too much? thanks.


. Lava rock won't effect the ph.
j/k
