I just want to thank everyone for all the help and suggestions..
To answer the questions in the prev. posts. I check all the pumps and heaters today everything is work fine... Nope no one put anything in the tank, everyone that I live with loves all the fish and corals.
Last night i put the hippo tang in the Formulin -3 Dip for 30 mins and he was actually doing good in there. I put him back in the qt for a little while and he was just sitting there not doing much, so I put him in a bigger tank and he was swimming around and then I went to bed and in the morning he was Dead....
So today I took a ride to That pet place / that fish place ( 2 1/2 hour drive) because they have Marine Bio there and i brought the fish there, she said there is no external fugus or parsites... The only thing that she can said was that it might have been an internal infection or a bacteria. She told me to put in Rally in the tank but I have not done that yet...
When I got home for PA i was doing a major water change i found the below worm. I am not sure if he is bad, i think it is just a bristle worm but I took him out anyways
Also what are these on my rocks: Are they just some type of fan worm?
So back to the fish, sorry I got carried away... At that pet place, they tested my water and everything read fine besides Ammonia, it was 0.2 but she said most likely that is from the fish that died.... The nitrates were 10 and the nitrites are 0.. The 4 that are in there now seem doing be doing ok, they are not breathing as heavy as before but i guess time will tell and I will never really know what killed all those fish...
Thanks
Nick