So in my molly colony tank, which I have a huge amount of fish, all coming for 4 adults (2 males 2 females, one male has passed). One of my female gave birth about 1 1/2 month ago, and I could only rescue ten babies, and this was back when it was a community tank with some tetras. 9 of the babies are growing to normal size (Right now they're 4/5 an inch), but one has not. He is not about the size of my younger mollies right about 1/4 to 1/2 an inch long. What should I do with him since I'm pretty sure he's a runt and how did he become on? Since all his brothers and sisters are much larger than him, and he get lots of food, and he is pretty fat and energetic.
