yer I think there great got a couple im trying to feed up , one seems to be stunting the other ones growth though so mite seperate them soon , mine are on prawns , muscles , pellets and just about anything else same as yours , quality gentle giants
Tig is great - at 20" everyone still wanted to eat him.
I have a 14" Tig living in my sump because they swallowed half of him, waiting to move him into his new tank when it's built.