Button Polyp Problem - Caused by lighting?

Fermat · #1 08/17/2007, 04:28 AM

My button polyps have begun to show a serious problem. The polyps look all swollen and glassy, the heads inverted, and they no longer close at night or when my cleaner shrimp walks over them. See the picture below. (the button polyps lower left are of a different kind and appear fine)

This started three days after changing my 65w 10000K PC bulb, so I'm thinking that it is caused by that. Has anyone else seen this happen to button polyps? Will they get better? Should I decrease the photoperiod or place a piece of paper to shadow them?

My tank has undergone some significant changes recently with the additional of a sump/fuge a month ago, and all params have fallen in line and become much more stable.

tmp/sg/alk/cal/nit/mg 79/1.025/10.5/425/0.4/1380
using RO/DI w/ TDS 1 (gonna change the di resin today)
add weekly Iodine but do not measure
DT's phyto 3/week

Other corals, inverts, fish all look fine, and pods are mulltiplying like crazy in the fuge.

fishtk75 · #2 08/17/2007, 07:12 AM

Three days is not long for new lights. the corals need to use to the more light.
I hold off on the Iodine if you do not test for it. I used it and saw corals like it and some not. As of now I do not dose for now.

You need to read this.It will help what is does to the tank.
http://www.advancedaquarist.com/issues/mar2003/chem.htm

Fermat · #3 08/17/2007, 09:31 AM

But are the button polyps ok? Will they eventually get used to the new lighting and return to normal? Should I take action now to prevent them from getting damaged further?

Or is 3 days too few for a lighting change to take affect?

cloak · #4 08/17/2007, 12:14 PM

They look fine to me. Just acclimating themselves to the new lighting. Just leave things the way they are for a week or so and they should be right back to normal.

fishtk75 · #5 08/17/2007, 02:59 PM

Quote:

Originally posted by Fermat
But are the button polyps ok? Will they eventually get used to the new lighting and return to normal? Should I take action now to prevent them from getting damaged further?

Or is 3 days too few for a lighting change to take affect?

As cloak said they are ok.
weekly Iodine watch it!