Blenny missing!

[Noobreefer1]

I went away for the weekend and when I got back my bicolour blenny had vanished! I haven't added any new fish or coral and before I left I tested and the water was pristine. In the tank I have two clowns and a mix of corals. It is a small 90l/20 gallon tank so not too many places for him to hide! I moved the rocks and looked around with a torch, checked the filter sock, the skimmer and the ground around the tank - but he's nowhere to be found! Anyone else ever have this happen to them!?

 

[Katrina71]

CUC can make fast work of a little guy