Some SPS' not opening

trouble93

trouble93

Member
It has been a few days since some of my SPS' haven't opened(acro, cat's paw,pravona) I thought it was because of high trates. So I did about a 80% WC over a few days come to find out it was my test kit. Still I do have some SPS' that are doing fine (birds nest, staghorn, milli's, monti cap and green slimer). Nothing has lost color. It's just worries me that those pieces have been closed so long. Water levels are:
PH 8.4
Cal. 420ppm
ALK.11.8
Mag. 1350
Temp. 79.5
Nitrates some where between 10 & 20ppm
I also have some LPS' that are doing fine as well(Hammer, candy cane,Minty green merulina). And softies and Zoo's have no change to them at all. Any ideas on if these coral are in any danger? Thanks.
 
jackri

jackri

Active Member
Have you tried checking phosphates?
Anything touching the corals as well? I had a leather coral that would sweep over to my cat's paw and irritate him once in awhile or shrimp would walk over them. Everything else in your water seems fine though -- although that is quite a big water change to do in a short time.
Also, what kind of lights and how much live rock and how big of a tank?
 
nycbob

nycbob

Active Member
any pic? doing 80% wc over a few days seems dramatic since other corals r fine. any fish nipping or picking at it? try running carbon too if u hv soft corals.
 
trouble93

trouble93

Member
Originally Posted by jackri
http:///forum/post/3023853
Have you tried checking phosphates?
Anything touching the corals as well? I had a leather coral that would sweep over to my cat's paw and irritate him once in awhile or shrimp would walk over them. Everything else in your water seems fine though -- although that is quite a big water change to do in a short time.
Also, what kind of lights and how much live rock and how big of a tank?
2x250 MH 20k bulbs 100lbs lr 90gal. tank
 
trouble93

trouble93

Member
Originally Posted by nycbob
http:///forum/post/3024163
any pic? doing 80% wc over a few days seems dramatic since other corals r fine. any fish nipping or picking at it? try running carbon too if u hv soft corals.
No nipping that I have seen and I do run carbon I'm at my wits end my lights just came on about a half an hour ago I'll see what happen today.
 
trouble93

trouble93

Member
Originally Posted by trouble93
http:///forum/post/3024178
No nipping that I have seen and I do run carbon I'm at my wits end my lights just came on about a half an hour ago I'll see what happen today.
Lost the top of a piece of staghorn. I cut that piece off.
 
bluemantr

bluemantr

Member
I would suggest lower dKh. I keep my SPS system around 7 If dKh goes over 9 my corals start losing color and polyp extention. Well you can try if you like, it wont hurt anything. But dont lower it so quick, take your time to lower it.
 
jackri

jackri

Active Member
My dKH is 11 in one tank and 13 in another -- polyps look great and stuff growing really well so I doubt thats it.
Could be a nitrate/phosphate issue... corals don't like either.
 
trouble93

trouble93

Member
Originally Posted by jackri
http:///forum/post/3025816
My dKH is 11 in one tank and 13 in another -- polyps look great and stuff growing really well so I doubt thats it.
Could be a nitrate/phosphate issue... corals don't like either.
I have to agree I believe it all started with the high trates. The problem was a large bio load so I was feeding my tank everyday and a lot and because I had no red slime or algae bloom I thought I was O.K. boy was I wrong. So I have since cut way back on my feeding cross my fingers and let nature do it's thing.
 
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