What about water hardness? does this affect them in any way? I recently got 4 babvies, and I liv ein Fl, so unluess I purchase a RO unit, I can't get the hardness down. The pH is down to 7.0 with peat in the filter, driftwood, etc.
Mine are all of an inch long, and live with a geo. and some plecos, in a planted tank.