Corals: slowly dying?
I have a 20 gallon nano tank that has been established for over a year now and all of sudden my corals are starting to die. I have a button polyops that should spread easily and dont ( only the large ones open anymore). I have a flower pot that used to open but is starting to die and never opens at all. I also have a green star polyop that spread like crazy but now looks like its starting to die. My ph level is is around 8.5. My ammonia is close to zero. My nitrite is around 0 as well. My nitrates are alittle hight like between the 40 and 80 portion but i think thats normal. I usually do water changes every 8 days swapping about 25 percent of the water out. The water is purchased from the fish store, not from made from tap. There are three fish in there a clown fish, dansel and a flame angel. I usually ad buffer with water changes, kents two part reef chem the next day, then some iodine or ph helper depending on the reading of the test. Any suggestions or help on this would be great? Like how often i need to add chemicals or what could save the coral? Thanks
How would you recommend quarantine it? and how much iodine and calcium?
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From what a heard, polyps are easy growing coral, but if they aren’t opening or spreading to much, maybe a good iodine dip might help.
I’m aware you already put iodine in the tank, but probably isolating the polyps in a liter of tank water the next time you do a water change with 4-5 drops of iodine for about 4 minutes.
After that gently shake any debris and possible nudibranches off and rinse it with tank water before placing it back into the tank. Might help give your polyps a small wake-up call.
I too have a flower pot that was beginning to decline. I put it in my quarantine and put high doses of calcium and iodnie in it, and kept the light low for about a week (i gave them 4 hours of 150w halides in a 10 g tank). The coral started acting normally again and i acclimated it back into my system.