Got mine a week ago he was like an inch,i have been power feeding him daily and doing frequent water changes.He has grown like an inch already,he loves raw shrimp,it is all he will eat so far,when i 1st got him he ate 2 guppies i bought for him but since just shrimp.The only problem i am having is that i have to''hand feed him'' all the time or he wont eat,plus he is kinda slow and the other fish would eat all the food.