I lost one, other two really aren't eating. Their in the same tank as my 5 RM which are 4-5" but I put a divider in my 125. Their just not eating, they ate the first day, but for some reason they just stopped. PH 7.0 nitrites 0 ppm nitrates 20 ppm, ammonia 0. Water temp 85 GH 180 KH 40