Well, in the small tank he was with first of all his brothers and sisters. Then I sold them and kept him because he was the first one to be born. Then there was a harlequin rasbora and a neon along with 2 shrimps. The shrimps seemed to be eating the tankmates so I moved the molly out into the big tank.
I fed him special baby livebearer food when he was a baby, then I put him onto Nutrafin complete max flakes. He occassionally pecks at the pleco food, and he also has bloodworms about once every 2 weeks.
I thought he should be bigger than that, because when I first started out I was told it would be fine to put 4 mollies and a betta in my 5gallon tank, and they all developed fine. I still have one actually.