Well, the simplest thing to try is to slowly raise the GH and PH to see if that changes the mood of the fish. Get the KH to at least 4 German degrees. Baking soda can get you there. It may take a few weeks for an adjustment period in the fish's behavior.Good point, and yes sorry about sticking the oh value in there it was supposed to be GH(measured weekly). The gh is usually between 0-75 and KH ~ 0 as well