I got 8 maingano, 3 snow whites, 5 acei and 13 saulosi. The maingano are 1.5-2" Saulosi 1, 1.5 and 2" depending on the individual fish. Acei 1.5" socolofi 1.5" The maingano I have 4 I feel are female based on coloration, 1 unknown and I believe 3 definate males. One of the female had been acting normally, eating well etc. Yesterday I noticed she wasn't eating, hiding behind a vase, but still was active if I came near her. I don't see any damage on any fish and no fish seems to be bullying anyone. The other fish all are acting normally. Is it likely this fish (biggest in tank 2") is holding or it is more likely she is ill?