This sucks!
- Thread starter Deuce67
- Start date
PSEUDOREEFER
Premium Member
Have you fragged it yet? First thing is first- frag whatever is RTN'd (leave at least a cm between destroyed tissue and living). Your water looks perfect- the only thing I can think of is either a light change or possibly (but not likely) Dissolved Organics. A water change is standard proceedure if you think it could be your water. Have there been any recent changes of any kind in your tank?
Deuce67
New member
I took the rock out and ripped the entire colony. Fragged as much as I could. 10g w/c are done weekly. I havent done any other changes to the tank in a while. Just a light upgrade but that was well over a month ago. I searched all night long for any possible causes. Didnt find any. I even got up early and made sure theres no predators eating the colony and found nothing. I am clueless. From what I have been reading, some sps will just rtn for no reason at all.
PSEUDOREEFER
Premium Member
I wouldn't attribute it to the coral until all possible causes have been investigated (I've had one coral RTN only to be followed by many others). Stray voltage can sometimes cause undue stress. Are there any old pumps that could have cracked their casings (ie any Rio pumps?). Have you moved any corals around recently? Do you have an anemone that has been wondering? (could possibly be stress due to chemical warfare).
Deuce67
New member
I have a pair of Rios. But I never heard any stories of voltage leaks from the Seios though. I do have a grounding probe in the tank. Never had an anemone either. Hmmm, seems like my grounding probe is encrusted in corraline. Ill take it off and soak it in vinegar. Ill take a reading from my voltmeter while the grounding probe is out to see if there is any stray voltage in the tank.
Deuce67
New member
Pseudoreefer. I think you nailed it on stray voltage. With my groundine probe totally encrusted with corraline and tube worms, I was getting a read from my voltmeter of 59V!!! I took it out and scraped off all that crap and got it back to 0 volts. Now I got to check what caused the stray voltage.
COreefer
Premium Member
Don't stop at the voltage issue Russ...Do a massive water change and run through every change you have made or your tank parameters have gone through in the last month. Change your carbon and turn your ozone either off or very low. Most of all, get that colony out of there, and keep an eye on any cooonies near by. Corals can RTN for no reason an it can spread very quickly. Make sure the water you use for the change is as close to temp, and ph as possible.
If you want Russ...call me and we can run through eveything...
If you want Russ...call me and we can run through eveything...
Crit21
Active member
Sounds like it might be worth laying off the Coral Accel after the water change for a while.
Coral Accel contains hydrolyzed marine protein, marine lipids, potassium iodide, ascorbic acid (vitamin C), vitamin A propionate, vitamin A palmitate, sodium EDTA, tocopherol (vitamin E). I wonder which of these, if any, would cause the RTN? I'm no marine biologist, but it makes some sense that something could have accumulated over the past few weeks. I'm a skeptic of a lot of these additives. They don't seem to take into account the variables of each tank, and this one includes 3 antioxidant vitamins for which test kits aren't available. Could these have accumulated to toxic levels?
Sodium EDTA is an interesting compound. It binds to metals, such as nickel, copper, and iron, making them unavailable to react with other ingredients in a product. EDTA also sequesters calcium and magnesium from hard water. I wonder if this could be binding with any of the necessary elements in your water.
Coral Accel contains hydrolyzed marine protein, marine lipids, potassium iodide, ascorbic acid (vitamin C), vitamin A propionate, vitamin A palmitate, sodium EDTA, tocopherol (vitamin E). I wonder which of these, if any, would cause the RTN? I'm no marine biologist, but it makes some sense that something could have accumulated over the past few weeks. I'm a skeptic of a lot of these additives. They don't seem to take into account the variables of each tank, and this one includes 3 antioxidant vitamins for which test kits aren't available. Could these have accumulated to toxic levels?
Sodium EDTA is an interesting compound. It binds to metals, such as nickel, copper, and iron, making them unavailable to react with other ingredients in a product. EDTA also sequesters calcium and magnesium from hard water. I wonder if this could be binding with any of the necessary elements in your water.
Deuce67
New member
No, its not the kalk. But I do dose. I think I have seen the problem though but not 100% sure just yet. A couple of weeks ago, I notice a sudden bloom in asterina stars. After doing some research, GARF claims that some mini star species are coral eaters. I checked the tank early this morning with a flashlight and saw a couple of mini stars on one of my milles. It is starting to STN but Im not sure if the stars are grazing algae on the dead spot or actually eating the coral. GARF claims that Harlequin shrimps will eat those stars but Im not sure if I should add one since I already got a cleaner and a CBS. Plus I dont know if I have to dose Interceptor again. My 2 shrimps barely made it last time I dosed.
