Green Button Polyps?

[creech72]

I've noticed that my green button polyps are starting to turn white. Does anyone know what may be happening? I've had them about 6 months and color change started about 2 weeks ago. All water parameters are fine. Too much light? Thanks.

 

[thegrog]

what kind of lighting do you have and how old are the bulbs. Could be a sign of bulbs going bad and they don't get enough lighting and the photosynthetic algae are dying off.

 

[nm reef]

The more information you are able to provide in regard to your system....lighting/circulation/livestock......current water chemistry.....additives........the easier it may be to help answer your question.
As a rule button polyps are very hary and adaptable to various conditions......but fluctuations can stress them.....and predators can cause some issues.

 

[creech72]

29 gallon
Aqua Clear Mini
PC 2x65
1 RIO 600
30lbs LR
2 Fire Gobies
20 turbo
15 bl hermits
Tank has been running about 2 years. I have other polyps and mushrooms in the tank and they are all fine. I use to check parameters twice a month and never had any bad readings. Right now I don't have a test kit and I last tested a month ago. I just recently started dosing iodine. Could that be the cause? Bulbs are 10 months old.