I bought 2 small loaches at the weekend. Before i left the house on saturday i went to check on them and found one on the kitchen counter, it had jumped clean out of a small hole at the back of the cover, i picked him up and placed him back in the tank, he was ok...when i came home from the pub both loaches where missing, they had found a small gap in the plastic rock i have and had swam into the middle of it, i got one out but the other still hasnt come out..is it possible he is dead, or should i just wait ..if he is dead will i have to throw the ornament out..?