Urgent help needed Coral Problem

Slims

Slims

Joined
21 Jan 2010
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hi Guys

My corals are looking very sad at the moment. Both the Green Brains used to be very green but has slowly turned a brownish rust colour. The Red has also lost its colour. Can anyone tell me what might be causing this?
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Hi Slims, I'm no coral expert (yet, lol). Not sure what lights you are using, but I had a similar problem on my big tank last week (only have a Kenya tree and some zoa's in there). Eventually figured out two of the four T5 tubes weren't working anymore. Replaced them and wow - what a difference. Amazing that as the tubes gradually go, one doesn't notice the difference.
 
Hey Chas84. Where your T5 not working at all or not working to full potential?
I've got 6 T5 in a 4 foot tank - 2 white , 3 blue & 1 Actinic.
 
Also swapped my T5's this weekend, it is actually insane what a difference it makes. But this could also be a nutrient problem. I know SPS go brown with too high nutrients, not sure that it relates to this though
 
What arte your parameters? HAve you added anythign t othe tank recently?
THe RED coral looks totally diferent (shape wise) in the bottom two pics??
 
Slims said:
Hey Chas84. Where your T5 not working at all or not working to full potential?
I've got 6 T5 in a 4 foot tank - 2 white , 3 blue & 1 Actinic.
Click to expand...
Hey Slims, no they're working fine, but over a period of a week or two, two of the tubes "blew", causing less light and I guess because it hapened gradually I didn't notice the difference. Are all your T5 tubes on?
 
i would say your after pics look more healthy
 
corals

459b said:
What arte your parameters? HAve you added anythign t othe tank recently?
THe RED coral looks totally diferent (shape wise) in the bottom two pics??
Click to expand...


Parameters are all within range. My alkilinity was a bit low 2 weeks ago so i added a buffer to get it up. Other than that i had a WS outbreak and was treating with Costapur.(lost 5 fish btw)
 
chas84 said:
Hey Slims, no they're working fine, but over a period of a week or two, two of the tubes "blew", causing less light and I guess because it hapened gradually I didn't notice the difference. Are all your T5 tubes on?
Click to expand...

All tubes working fine.
 
Add some iodine to your water which will bring out the green again
 
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