Beginning of July bought 29 gal Oceanic BioCube from Aqua Dome with live sand, 20lbs live rock, 20gal their saltwater. Set it up and let it run for about 10 days. Water tested good at Aqua Dome so got 2 clownfish, a colony polyp coral, 10 little crabs and 2 snails (per Aqua Dome recommendation). Next day 1 clown fish is dead so got another. Next day both clown fish dead so got a Dottyback. Two days later Dottyback is dead. Got a Blue Damsel. Three days later it dies. Water is testing good at Aqua Dome all along. Am feeding with a frozen Cyclop-eeze freezer bar twice a day. 36 watt Actinic light is on 12 hours per day, 36 watt 10,000K Daylight bulb is on 10 hrs per day. Water temperature is 80 – 81F which seems high but the Aqua Dome folks say it should be fine. Specific gravity is 1.020 which seems a bit low but is the same as the Aqua Dome water (obviously since that is where I get it).
Stopped getting more fish for awhile after 5 deaths. I changed out 5 gal of water with Aqua Dome water, removed the filter and installed the Oceanic Bio Cube Protein Skimmer. (Not sure I should remove the filter as that filter was catching a lot of stuff and I don’t really seem to be catching much in the Protein Skimmer.)
Let things sit for a week then changed out another 5 gal of water.
That’s where I am now. I plan to let things sit for another week then change out another 5 gal of water and then add fish again to see how it goes.
Also, during this process the colony polyp coral, which looked great when I bought it has closed up about half of its buttons and the half that are still opening are pretty weak looking. About two weeks ago I began to add Iodide at the rate of about 2.5ml every other day per recommendation of Aqua Dome folks. Haven’t seen any improvement yet that I can notice but not looking worse either.
I have also gotten a test kit so I can check my own Ammonia, pH, Nitrite and Nitrate levels. My most recent readings are Ammonia=0, pH=8.0, Nitrite=0, Nitrate=5-10. Should I get something like API Proper pH to get the pH to 8.2? Also bought a test kit for Iodine/Iodide but haven’t checked my levels with this yet.
If anybody sees something really stupid that I am doing or that I am not doing that is making the fish die or stressing the colony polyp I’d appreciate the advice. I hate the fact that I am killing so many of these little guys. Scott