Help! Leather coral white spots

Todd129 · 01-08-2008, 08:50 PM

My leather coral molted and the tentacles came back out just fine. I went on a business trip and two days later returned to find the coral covered with white spots.

Water parameters are all solid. Temp=78, SG=1.22. NH3=0, pH=8.3I had added recommended iodine just as the leather ended molting before I left for my trip, and I added another prescribed dose tonight (seachem reef iodine).

The only thing the I can think of is that I recently added two 54-watt T5s over my tank to go along with the two existing T5s, giving 4 watts/gallon. When I was on biz travel, I had set the timer for the two new lights to go on only 4 hours in mid-day to slowly increase lighting. The coral was under actinics.

What are the spots? What should I do? Thanks, Todd

baugherb · 01-08-2008, 10:04 PM

Can you post any pics??????

omard · 01-08-2008, 10:07 PM

May be sign of bleaching due to light change...

If possible move to somewhere in tank with less direct light...

Or to lower position if possible.

Todd129 · 01-08-2008, 11:00 PM

I also added a "phos-zorb" back and a sechem "purigen" bag to the tank to remove any phosphate or silicate. Could use of these chemicals have caused the problem?

In the meantime, I will move thoe coral down on the sand. At the store, though, it was under metal halide lights, so I assumed that it needed stronger lighting in my tank, so I bought another two T5s. Todd

coral reefer · 01-09-2008, 05:57 AM

If you can take a picture for us to se and better help you out, it would be easier for us to identify!

01-08-2008, 08:50 PM	#1
Todd129 Plankton Join Date: Jan 2008 Location: San Mateo, CA Age: 46 Posts: 6 Skin: Mint Karma: 1	Help! Leather coral white spots My leather coral molted and the tentacles came back out just fine. I went on a business trip and two days later returned to find the coral covered with white spots. Water parameters are all solid. Temp=78, SG=1.22. NH3=0, pH=8.3I had added recommended iodine just as the leather ended molting before I left for my trip, and I added another prescribed dose tonight (seachem reef iodine). The only thing the I can think of is that I recently added two 54-watt T5s over my tank to go along with the two existing T5s, giving 4 watts/gallon. When I was on biz travel, I had set the timer for the two new lights to go on only 4 hours in mid-day to slowly increase lighting. The coral was under actinics. What are the spots? What should I do? Thanks, Todd

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01-08-2008, 10:04 PM	#2
baugherb Giant Squid Join Date: Sep 2007 Location: southington, ohio Posts: 5,192 Skin: Mint Karma: 265276	Can you post any pics??????

01-08-2008, 10:07 PM	#3
omard Gnarly Old Codfish Join Date: Sep 2003 Location: Silverdale, Washington Age: 63 Posts: 4,745 Skin: Mint Karma: 4558	May be sign of bleaching due to light change... If possible move to somewhere in tank with less direct light... Or to lower position if possible.

01-08-2008, 11:00 PM	#4
Todd129 Plankton Join Date: Jan 2008 Location: San Mateo, CA Age: 46 Posts: 6 Skin: Mint Karma: 1	I also added a "phos-zorb" back and a sechem "purigen" bag to the tank to remove any phosphate or silicate. Could use of these chemicals have caused the problem? In the meantime, I will move thoe coral down on the sand. At the store, though, it was under metal halide lights, so I assumed that it needed stronger lighting in my tank, so I bought another two T5s. Todd

01-09-2008, 05:57 AM	#5
coral reefer Giant Squid Join Date: Jan 2006 Location: Wonderland Posts: 4,860 Skin: Dark Karma: 32681	If you can take a picture for us to se and better help you out, it would be easier for us to identify!