Posted: Wed Mar 09, 2011 2:41 pm Re: This is urgent. Please read and give positive feedback!
Any fish that you put in a tank are likely to become a meal at some point. Anything that you wish to keep should be placed in a separate tank. That being said, feeder guppies are fine as a treat, but should not be a primary food source for your turt. Try adding some cuttlebone to chew on as well as veggies.
You mentioned that they are different sizes. How much difference is there in their sizes? Generally speaking you don't want to house turts of different sizes together. Aggression, once it starts, often doesn't go away. If you don't separate them you could likely end up with a dead turtle as well as the fish that you already lost. I wouldn't wait for it to happen again. Rubbermaid containers make great temporary homes and they are cheap.
Missi
2 RES, 1 cat, and a spoiled rotten pug.