bought a watchman goby, put him in tank, one of my three striped damsels started chacing him, shut lights off, in the morning, gone, i know they are jumpers, so i looked , nothing , checked over flow, nothing, been checking all around in my tank in the day and night, no sign, i have a 200 gallon tank with 250 of live rock, thought he was hiding, have my doughts now, must have died all i can think of, have all reef safe fish , nothing overly aggressive,