pests

I believe even after extensive safeguards my tank is now infested with aptasia...everything was brand new, rock and sand dry...my three coral frags closely inspected and dipped...I don't believe it was my CuC...as they were added months prior to coral...thoughts?? How much "Spores" does it take...

bought a new 11 pound Fiji rock a couple days ago and am seeing a small snail and crab, probably more critters yet to be discovered. The snail is probably 1/16 of an inch across and the crab is about 1/8 of an inch across (very rough estimates). Please let me know if either of the guys are...

Hi, Yesterday I noticed my trachyphyllia wasn't doing to well, everything seemed to be okay until yesterday I noticed it was either bleaching or showing skeleton. I moved it too a lower light and lower flow area of the tank so see if this helped as it had been sat in my sand below an MP10. Today...