The LFS only had them about an hour when I got him, they had just arrived, so I really don’t think I can find out what they were being fedThey are a bit. They were probably fed live food at the lfs. I’d try floating foods mixed with garlic or bloodworm juice. Throw in some current to get it to move. Can even mix with live crickets and prepared foods. Just keep reducing the live crickets and hopefully the cudas will take the pellet.
But I’ll give those ideas a shot, thanks!