SPS corals going down hill (lots of pics)

[kau_cinta_ku]

well, i'm not sure where to start, but alot of my SPS corals are slowly going down hill over the past 2-3 weeks and not sure wht the problem is. my water parameters have been the same the whole time:
ammonia - 0
nitrate - 0
PO4 - 0
alk - 10dkh
mag - 1350ppm
cal. - 450ppm
temp. - 79-80
pH - 8.1
sg. 1.026

haven't changed much in the tank except for the carbon and phosban, like normal.

15 gal. water changes every sat. or sun.

here are some pics of how they looked 1 month ago and how they look now.

before:

after:

before:

after:

before:

after:

before:

after:

and only this pic. of a rose millie frag.

and if you can see in the green slimer, tward the middle is also turning white.

any help would be great.

 

[jkreefer]

Have you taken any suspect corals out and dipped them in TMPCC or povidone? That would be my first step, just to be safe i would do a large water change and start running carbon, so you dont start a domino effect.

 

[ooja3k]

What did you change during that month??

 

[kau_cinta_ku]

I have not taken any corals out and dipped them yet, I do not have any TMPCC or povidone at the moment. I will check to see if any of our club members has any to spare.

during that month all I have changed was the carbon and phosban.

 

[bennyinca]

what salt do you use?
how old are your RO/Di filters?

 

[kau_cinta_ku]

i am using oceanic salt mix. and my RODI filter were just changed out today but was getting 10ppm before the change.

 

[leeweber85]

Sorry to see this happening Sam. I don't think the Green slimer would be affected by any parasites... I'm thinking it has to do with something else. I'm thinking it's some kind of contamination

Check your bulbs really close and make sure they aren't cracked... do you have any treated wood that could have been splashed and then dripped back into the tank?

 

[NaH2Ofreak]

I would guess its an alkalinity issue. Probably due to something with the phosban. Just a hunch. Sorry. Hope all works out.

Dennis

 

[kau_cinta_ku]

Thanks Lee, everything was doing so well till lately and it just kills me to see them go downhill like this.

I will check the bulbs now. as for wood, the stand and canopy are made from oak and all of the insides have been covered with kiltz primer and water proofer.

contamination was my guess also but I never added anything to the tank except for a 6 line wrasse for the last 3 months. unless something got into my waterchange containers. I did notice when I was using reef crystals salt mix, the bottom of the brute trash can and my mixing pump had a brownish crud on it, but I heard that was normal with that salt mix. maybe not?

 

[kau_cinta_ku]

just checked the bulbs real well and besides a couple water marks, nothing else is wrong with them.

my alk. has been stable between 9-10dkh for the last 3 monthes.

 

[tamarindthai]

how long you 'd been using phosban and how fast you running,,or you just sock it in the sum,,,i have the same efftected 4 years ago after i switch from phosgard to rowaphos,,but i cought it right a way ,,before i loose the whole tank.

 

[SuperNerd]

Could potassium, iron, or iodine be playing any roles?

 

[kau_cinta_ku]

here is the pump from my waterchangeing can, that I never got around to cleaning yet, I just switched it out with a mj1200 W/mod and cleaned it completely out. but you can see the crud that I was talking about on it.

 

[tamarindthai]

looks like chemical burnt to me...

 

[kau_cinta_ku]

<a href=showthread.php?s=&postid=12535233#post12535233 target=_blank>Originally posted</a> by tamarindthai
how long you 'd been using phosban and how fast you running,,or you just sock it in the sum,,,i have the same efftected 4 years ago after i switch from phosgard to rowaphos,,but i cought it right a way ,,before i loose the whole tank.

I have been running pura phoslock in a 2 little fishies phosban reactor for more than 2.5 years. changeing it out monthly. I run 6 TBS in the reactor powered by a mj900 and using the ball valve to get the flow so just the top of the media is moving a little.

 

[Philwd]

A long shot but I've seen this from a dying sponge deep in the rocks. The toxins will never show up on a test. Since you have both montis and acros affected it's not likely the more common reasons nor pests.

In the pic with the green cap I see a bird's nest to the left. How is it doing?

Adding some Chemi Pure in the sump for insurance would not hurt either.

One other thought. Do you have an ORP reading? It may tell us if you have excess organics.

 

[kau_cinta_ku]

<a href=showthread.php?s=&postid=12535235#post12535235 target=_blank>Originally posted</a> by SuperNerd
Could potassium, iron, or iodine be playing any roles?

I couldn't say for sure, as I never tested for any of those and therefore I have never added any of them either.

I am a huge fan of: If you don't test for it, don't add it.

 

[kau_cinta_ku]

the really weird part of the birdsnest is that this one is actually doing well, I have tried 2 other times about 1 year ago to keep birdsnest's and all have died. this one is actually growing and looking very well.

I will get some chemi pure tommrow and add it to the sump.

as for ORP, I do not have anything to check it.

<a href="http://s13.photobucket.com/albums/a296/kau_cinta_ku/?action=view&current=CIMG5134.jpg" target="_blank"><img src="http://i13.photobucket.com/albums/a296/kau_cinta_ku/CIMG5134.jpg" border="0" alt="Photobucket"></a>

 

[kau_cinta_ku]

<a href=showthread.php?s=&postid=12535266#post12535266 target=_blank>Originally posted</a> by tamarindthai
looks like chemical burnt to me...

I have not added any chemicals to the tank in the last 6 monthes except for mag. which I add real slow to the skimmer section of my sump. my alk. and cal. stay steady using the cal. reactor.

 

[kau_cinta_ku]

well in an effort to figure out what is going on. I retested everything and all was the same except for sg.

I recalibrated my refractometer, and then checked the sg. in the tank again and the reading was 1.022 not the 1.026 I thought it was. so I put some mixed SW in my top off container so I can raise that back up slowly.

could the sg. getting low over time be the cause of this?