hi my name is Rob and I have a 55 gallon saltwater set up that I'm having problems with. I Had it up for about 2 weeks with just about 6 pounds of live rock so then I proceeded to get 2 green chromas. Well that night 1 died, then about 2 days later the other one died. So I did a test on the water and everything was good. so I waited about a week then went and got 3 green chromas and some more live rock. well I acclimated them with the bag in the tank and poured my tank water in about every 15 mins for about 45 minutes. I lost one about 10 mins after he got in the tank. He was breathing rapidly and was at the bottom about to turn over so I netted him back out and flushed him. So now I have 2 left well when I went to bed they were swimming around and doing great. I woke up this morning and one of them was at the bottom dead. They had eaten too. So I checked the water ever thing checked out good , although the nitrates are about 5.0 to 10 since the color on the nitrate are very similar. What is going on ? Is this common? I have about between 1.20and1.21 salinity level in my tank my temp is at 79 degrees. I have a protein skimmer and an emporer filter although I ordered a fluval 305 yesterday.....Please help me