Will the crawfish mess with the catfish? The raphaels hide as long as their is light in the room, but about 5 minutes after lights out they come out to eat. I just don't want to loose my catfish or an expensive crawfish.

I've been thinking of getting a crawfish and have been doing a lot of research on them. It sounds like your catfish could be at risk of injury. Crawfish will eat any fish small enough to fit in their mouths and may harass any other resting fish. The catfish are a bit large to eat, but they may very well get injured from the crawfish's claws when the crawfish explores them out of curiosity. Catfish are scaleless fish so they are extra sensitive to any injury, and an injury will make them more prone to infection and disease. It sounds like a dangerous mix. I would separate them. From the reading I've been doing, I have found very few fish recommended for mixing with a crayfish. Crayfish are cool all by themselves though. Some say to put small, fast fish with them, like Zebra Danios, but the crayfish will make a meal out of them at night when the danios are resting. Crayfish are surprisingly fast, too. Some say put larger, top-dwelling fish with them, but then larger fish tend to harass the crayfish because it looks yummy. I'm sure you'll find people who have kept fish with crayfish, but experts say it is best alone.

Z