So like the title says my fire fish is missing since yesterday. I have a redsea max e 260 AIO with a lid. He was out swimming and eating as usual untill yesterday morning he didnt come out to eat and was not in his little home in the rocks. So first things I checked around the tank even though the lid has not been off and he is not there. I check the back sump even though he couldn't make it there either unless he shrank and swam through the overflow grate. He had no signs of disease or unusual activity, he just disapeared. No new additions to the tank, i have two bullet hole clowns, flame angel, midas blenny, snails, one hermit. The midas blenny is the newest but but has been in tank for 4 months now and shows no aggression towards any other fish. Are fire fishes known to move holes and hide for a while? If he died im sure the CUC got him before morning . He just a fish but man he was my favorite and it sucks. Any friendly advice or ideas would be greatful!