Hi everyone I have just started my first reef tank (fluval 13.5) and need a bit of advice please. So I just put 2 clownfish in the tank after cycling for a month and a half. Today I noticed a small white looking bug floating around with the flow of water, it looked dead and cant find it now I think the current took it underneath a rock. I have used carbisea ocean direct sand and bought some dryrock from the local pet shop that I rinsed in ro water before putting in tank. Apart from aqua vitro seed and ammonia to cycle the tank nothing else has been added! Any ideas? Sorry I don't have much to go off