Hi Trey!
Would shrimp be okay?
*****In moderation, usually yes. Feeding too much crustaceans will eventually result in vitamin B1 deficiency, illness, and death. Google thiaminase issues in feeding fish.
Live fish?
*****Big no-no in my book. Opinions vary but almost all experts (99%?) would firmly say don't do it. Feeder fish transfer all kinds of pathogens to whoever eats them - bacteria, virus, and parasites. If you raise your own healthy feeder fish, it is still inhumane IMHO but here many / most might disagree. Read the relevant stickie threads in the General Aquarium Discussions forum and in Freshwater Diseases and Health Issues forum. They are easy to read and you will know almost all the important stuff quickly. I apologize if you know all this already. I don't know your level of expertise in the hobby.
Ive seen people give them frozen talapia fillets.
*****This is not bad but the bad part about it is that fillets offer imbalanced diet - lots of protein and almost no vitamins, minerals, enzymes, co-factors, roughage, trace elements, etc. etc. that are contained in other body parts of a fish. It is always the best to feed a whole fish or at least cut up whole fish to your predator pet. Otherwise, people resort to stuffing high quality pellet into a fillet or to soaking the fillets in something like VitaChem.
Do you know why they shouldnt eat warm blooded animal meat?
*****When you read the stickies I mentioned above, you will know. In short and in first approximation model, the fats of warm blooded animals turn hard and solid at the body temperatures of our cold-blooded pets and cannot be digested properly. The excess fat is then deposited around internal organs in the abdominal cavity and the organs start malfunctioning and eventually fail. There are other issues too.
