I have some white noodly looking sponge growing in my tank. I'd like it to be irradiated. I heard that bicolor angels eat sponge so I got a small one, maybe an inch long. I've had him for a few weeks, he's just now getting to where he'll leave his hiding spot and swim around the mouth of his little home.

- Do bicolor angels actually eat sponge?
- How quickly do bicolor angels grow?
- Why is this little bugger so cute?

I do have another angel, a coral beauty, and they get along famously. I think that tank is big enough for them to have their own space when the bicolor gets older.