I discovered three wcmm fry in my pond about two months ago (I'm guessing) after taking out the parents because of a huge storm and to clean the pond. I took them out so I could put the parents back in and put them in a grow out tank I've used in the past. This tank has snails, daphnia and ostracods as well as heaps of Java moss and algae and hiding places. Last time I grew out 5 fry without any problems but this time, two of them look the right size for their age and the third looks just a couple weeks old, half or even a third of the size of the other fish. I've been feeding them and they all seem healthy except for the size difference. Is something wrong? They were born maximum 1 day apart I'm guessing so it isn't an age difference. He also doesn't seem to be growing at all. Has anybody on the forum had this problem before?