It isnt a big deal, more of a curosity I guess. I bought 2 Jags at the same time. Bought them both at about 2 inches. That was probably 5 months ago. The one jag is still 2 inches, hasnt grown a bit, the other is probably close to 6 or 7 inches already. Weird. The little one is not picked on, he is always out and getting to the food at feeding time. He is just miniature lol Is it possible that he might just be the runt of the litter? Does it work that way with fish?