How to recuperate from RTN

[Mac21]

This is my first post on reef central and I am happy to be part of this great website. I am having a big problem with my reef tank, my tank is suffering from what I have read of rapid tissue necrosis. I dont know exactly what has caused it but my tank is giving me positive nitrates, but before for a long time it always tested negative, could it be that this nitrate stressed out my corals and thats why of the RTN? Some algae appear too, but now due to water changes the algae has not spreading. All my other parameters are fine.I use RODI water. I need you guys to help me please, how can I get rid off and recuperate from this RTN, I am losing basically all my sps. I have frag some of them but these also start turning white from the bottom up.
Any advise will be greatly appreciated, thank you.

 

[nemmy]

75% of the time people say their parameters are correct and it turns out it was an issue with parameters. We need to know the full work of all of the parameters. Ammonia, nitrite, nitrate, ph, alk, ca, mag, phosphate.
Also lighting, flow, temperature and how much it swings, specific gravity and if that swings as well.

 

[Fish_wiz2]

75% of the time people say their parameters are correct and it turns out it was an issue with parameters. We need to know the full work of all of the parameters. Ammonia, nitrite, nitrate, ph, alk, ca, mag, phosphate.
Also lighting, flow, temperature and how much it swings, specific gravity and if that swings as well.

I agree with the above, and i usually see it associating with alkalinity. But sometimes it can be unexplainable... RTN is still a mystery.

 

[Mac21]

These are my parameters:
Temperature at 78 using a chiller.
Alkalinity as meausure today is 12, although is more often aorund 8 aor 9 dkh
Calcium 400 ppm
mg 1390
phosphate is zero
nitrate is 2 ppm ( this is a problem ) Today I installed a phos ban reactor to get rid off phosphates.
I have two tunze turbelle streams. at opposite ends of the tank, facing each other.
two koralias close to the bottom of the tank at opposite ends. towards the back.
My specific gravity is at 1.025.
The temperature goes from 78f to 80f, at 80f the chiller kicks in and lowers it back to 78F
The lighting fixture is the current usa orbit 150 watts MH double ended plus two 139 Watts PC dual actinics. I just changed the halides from 10k to 14k ( aquamaxx )
I have not tested for ammonia and nitrite for a long time, they are always negative. now I dont have the test kit anymore.
I hope this information is of some help for my problem. Thank you a lot for the quick repply.

 

[ryanrid]

Alkalinity as meausure today is 12, although is more often aorund 8 aor 9 dkh
QUOTE]

that is your problem right there, a huge swing in alk. in most cases once TN starts there is not much you can do about it.:sad2:

 

[Mac21]

I was surprised to see my alk at 12, I have tested my water for the last month often and I always get an 8 or 9 reading, I guess I need to adjust that. Do you think the nitrates being at have something to do my the RTN?

 

[Znut Reefer]

I bet it's more to do with the alk swing than the nitrate. Stability is the key.

 

[nemmy]

I bet it's more to do with the alk swing than the nitrate. Stability is the key.

+1 alk swing

 

[jedi31]

QUOTE]

that is your problem right there, a huge swing in alk. in most cases once TN starts there is not much you can do about it.:sad2:[/QUOTE]


Not sure if this is true. RTN doesn't mean the end of the coral, In some cases yes but if the OP gets his Alk stable around 9 along with his other water par the rtn will stop. Fragging will help as well.

 

[SeanT]

Mac,

Since noone else did, I will

[welcome]