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. Thanks.

 

[kdfrosty]

What type of lighting under are they under? What type of flow? what are your water parameter specifics?

 

[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?

 

[kdfrosty]

If the polyps are opening and extending then that's a good sign. I would be worried if they were constantly closed.
Do you test your iodine before and after dosing it? That'd be a good start.
In the following thread, someone has the same problem, and tests for everything but iodine, which they dose.
https://www.saltwaterfish.com/vb/showthread.php?t=166789
It might be good to test for all water parameters, specifically iodine, and then do a couple of small water changes.

 

[creech72]

I appreciate the input.

 

[mudplayerx]

Yep, stop dosing the iodine if you don't have a test for it. Also, are they turning white all over or just on the stalks?

 

[creech72]

Around the mouth area. Stalks are brownish. I guess I'll stop dosing iodine. Can you actually overdose with iodine?

 

[kdfrosty]

Definitely.