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I think its called southdown sand. Yes, what you are talking about is fine to use. Plain ole sand with nothing added.

My crabs and snails: Blue-legged hermits Astrea Snails Nassarius Snails - they are fast movers Cerith Snails - good sand mixers I have a 90 gal system with about 200 snails and 75-100 hermit crabs. The snails keep having babies and that's why I have so many.

Do you have a skimmer?

I *think* I have this same stuff in my tank. It will grow in small clumps and then after awhile it will fall off the rock ( gets blown off by a powerhead I'm guessing ). I don't think its grown more than 2 inches, maybe less. Everytime it comes off the rock, a new piece will grow in the same...

I have never used carbon- my reasoning is because I try and keep my reef as natural as possible. Putting chemicals in my tank does not sit well with me. Also keep in mind that activated carbon is reported to deplete some beneficial trace elements in the water. Some people will use it every now...

Originally Posted by jocca Use a syringe and shoot a bunch of liquid calcium right in to the aiptasia's face. It will die and shrivel almost immediately. Dont try to scrape them off....every little particle will form a new polyp. If you dont have liquid calcium, you can use kalk and water mixed...

Do your lights need to be changed?