The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
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How about a separate topic on a fish, coral and invert each month? I know that's ambitious and more work for you, but I'd be interested (doesn't hurt to ask). I can ask because I don't know anything.
I've been interested in the pistol and mantis shrimp.
We do, and encourage it. Just write up your own profile in the same style as the ones here, make sure you have some good sources and don't plagurize, and then submit it to one of the admins.