bump for help / anyone with advice at all i have no corals yet or fish i have just been letting my little tank cycle with live rock and any hitchickers that may apear i havent really found anything but what looks like a small clam kind of like a muscle... i have no idea where it came from but my live rock was sold to me as premium fiji , i am about 3 weeks in and have had diatoms form on the rocks and sand small bubble on the rock also it sits on top of the diatoms so i assume it is just gas and nothign harmful... not that it would really matter since nothign is in there but the weird little clam thing and he seems to be doing fine i found him in there a week ago and he looks okay