Ok so last night i woke in the night as we had huge storm and the power went off. Went to look in my tank to see if my fish were ok and my ADF was floating by the filter, so i thought oh no hes dead because he wasnt moving and his eyes had turned completely black. Woke up this morning to find him happily swimming round the tank as normal. Does anyone know why he did this or do i just have a weird ADF