dwarf Gourami. Could the problem be the undergravel filter?
>>No, not the filter itself. The substrate might be taken into consideration, but if it’s actual aquarium gravel then it’s highly unlikely. >Or should I do the aeration test, have taken samples to LFS… did not say anything out of ordinary… just low pH… but I have tested theirs and it’s about the same. >>Alright, so, if their water is from the same municipality then I think we can safely assume that this water has very low alkalinity–in terms of “buffering” ability, as opposed to alkaline in terms of pH–this means that the water cannot hold the pH stable very well. It is VERY easily fixed, Monica. >Also have a 10 Gal. quarantine tank with 2 guppies… also with undergravel filter… pH is low there as well. >>We have terrific consistency here, all pointing to the same thing. I don’t think I’d even spend the money to test for what’s pretty much in our face. >I have checked hardness before but can’t remember what it was…. didn’t really understand all of that… but reading the F
