They Love their goldfish! They will also eat the flakes and the pellets. I put in a cucumber for my pleco, and they run him off of it. I am learning that they will eat anything and everything I put in there. My LFS is a really good store. Been in business ever since I can remember. They take really good care of their fish, including the feeder stock.
The albino is right at 5 inches. The tiger, just a hair shorter. The tiger bit me the other day. Was going after the skin from the cucumber that they had eaten, and I guess he thought I had food in my hand. Surprised me more than it hurt, lol.
Thanks for comments. I appreciate them.