ok well for the last 2 weeks i have been loosing fish at first i thought thier was something wrong with my tank checked all the parameters and everything was right were it schould be i was getting so ticked because i lost mt 2 black onxy clowns and then my powder blue tang well i got up reall early today and come to find i have a octopus in my tank i saw his or her arms sneaking out from it little cave i have no idea how it got thier but it is really cool i tried getting pics but i cant fro the angle were he is it has blue spots on it. my tank has been up for over 5 years and never had a issue with loosing fish have not added any new rock or anything to the tank my only thing i can thinkl of is that i use to have all big fish in my tank and he or she has been thier from the get go and never bothered them but since i went with small fish now he can eat them well found a picture of what the guy looks like so here it is