Quote Originally Posted by truthsdeceit View Post
Thank you for the reply. I did some of my own research and had read about how bad goldfish can be.

If I'm buying frozen feeder fish is there anything special I should know about thawing? I would assume since it's fish I don't need to warm them only thoroughly thaw.

Any feelings about guppies? They seem to be the prefered 'live' feeder fish on the sites I visited.
I'm wary of live feeder fish bought from pet stores - they are crowded together and kept in fairly unclean conditions (as a rule). If you were raising your own guppies, that might be okay - although I have heard conflicting information. On one hand, guppies are often recommended as safe feeder fishes because of their presumed to be low thiaminase content. Some people claim that guppies contain thiaminase producing bacteria, however I have never read any scientific study confirming this.