about 10 mins ago I watched one of my two red crabs climb its way up the edge of my internal filter (juwel vision 260, sealed inplace internal filter). Anyway I watched him climb up the edge and then out of the water. I lifted the lid to have a look what he was up to as there is a way of escaping the tank up there. On lifting the lid I see both crabs sitting there. When they saw me one shot back into the tank and the other shot down the hole in the filter top. The crab is now down the bottom of the filter sat in the tube that the filter head fixes into.
anyone any idea what to do?
anyone any idea what to do?