I have had my 75 gal RR going since 2003 with not too many issues until late last year and most of my corals (hard and soft) that I had for years died off. I used to be able to keep inverts (mainly shrimp, snails and crabs) for months if not years without any problem. Over the last two years, I cannot keep any of thes alive for more than 48 hours.

I do a 10% water change every Sunday, run a protein skimmer and UV sterializer every day. I have a Ca reactor and 30 gal sump. I utilize two 175w 10k MH, 2 65w 10k PC and 2 65w Actinic PC and on timers. I got out of testing the water since everything looked great and no issues. Just before my second deployment to Iraq last October, the tank began a downward spiral and I lost all corals. The rock was completed covered with hair green algae. I keep three to five fish and always seem to get down to three fish for a long period of time. I keep a Tang, Clown and Foxface currently. I hired someone to take care of the tank duing my deployment and when I came back in February, I took the chance to restock the tank with small pieces of coral and many of them. I scrubbed the rock and within two months the rock had great corraline algea growth and the corals looked great. In the last month and a half, the cycle began again and the rock began to be covered with red slime algae so I treated with chemiclean. That took care of that then I got dark green non-hair algae. I have been using AlgaeFix and using phosguard, carbon or optigel in the sump. I use a RO/DI unit and that has been installed since 2002.

I feed once a day with algae strips for the Tang and Foxface and then a small mixture of frozen food for all of them.

The zoos and some soft corals are doing okay. The mushrooms exploded so I scrubbed them. I have getting a bright green algae growth now.

I am in between tearing the tank town again and scubbing the rock, going to just a fish setup with some rocks only, or just tearing the entire thing down and selling it. I just bought all new bulbs which I would be changing next week as I do annually.

I have been testing again and the phosphates are not existend, Ca at 220 and I have been supplementing with Turbo Calcium and it does not seem to be moving up. I was using an older Salifert test kit and just bought a new kit and it shows the same value. The alk is 2.5 and pH 8.0. Spec gravity is 1.024 and I keep the temp around 82.