Well hope to find some answers as to why my fire shrimp died first, then the next day my midas blenny died, then the next day my flame angel died, my clarkii clown look sick and shakes when he swims just like the midas blenny did. Anglefish never shook just stayed in the live rock until it died. I also have hermit crabs, turbo snail, couple regular snails, one emerald crab, and a red scooter blenny who all seem to be doing just fine. I have a 29 gallon biocube and I changed the filters every 2 weeks, did my water changes (15%) every two weeks. When I first set up my tank I let it cycle for about a month before I added one fish at a time(waiting a month in between) until my set up was completed. I have had this tank going since August 09' and everything had been great with it. I was hoping to hear some suggestions on what might have happened. Ammonio, Nitrite is and was always 0, ph got off just a bit down to 7.6-7.8 but added some ph now. I did a 40% water change after the shrimp and midas blenny died, but angel died anyway. Just really not sure what happened?