white spots on rock

Bulwinkle · 11-27-2007, 10:42 AM

Just a question guys, i have recently noticed an amount of white spots on my living rock. Seems to be the coralline alge turning white?
what could this possibly be due to?

BigAl07 · 11-27-2007, 10:46 AM

Have you changed lights? Bulbs? Rock level in the tank? Sometimes when existing coralline is exposed to more intense light it will indeed bleach and whiten. We have a local reefer here who went with 20k MH bulbs and ALL of his coralline bleached and receded except on the bottoms of the rock.

Bulwinkle · 11-27-2007, 10:55 AM

No i have not changed the lighting for some time now. no where near the time in which this has started happening. im really stumped as to what has caused this. Its not all the coralline but just small patches in different areas of the tank

11-27-2007, 10:42 AM	#1 (permalink)
Bulwinkle Tubeworm Join Date: Mar 2007 Location: SA Australia Posts: 34 View Gallery Karma Komment	white spots on rock Just a question guys, i have recently noticed an amount of white spots on my living rock. Seems to be the coralline alge turning white? what could this possibly be due to?

11-27-2007, 10:46 AM	#2 (permalink)
BigAl07 Reef Nerd :) Join Date: Mar 2007 Location: Waynesville, North Carolina Posts: 24,075 View Gallery Karma Komment Add yours!	Re: white spots on rock Have you changed lights? Bulbs? Rock level in the tank? Sometimes when existing coralline is exposed to more intense light it will indeed bleach and whiten. We have a local reefer here who went with 20k MH bulbs and ALL of his coralline bleached and receded except on the bottoms of the rock. __________________ > > > >Read ME < < < < when you're in need of answers or help with your tank. *Live Rock Rubble will do the SAME thing as Bio-Balls and is NOT a suitable replacement for BIO-BALLS in a Reef System! It's ALL gotta go!!* Nitrate (NO3) reduction is directly proportional to percentage of Water Change. Ask me about how to increase your REEF budget without going without FOOD!! Big Al's 10g.... BigAl's Slow 90g Tank Chronicle.... Allens OFFICE 12g Nano-Reef.... DIY LED Fixture - Allens OFFICE 12g by chipmunkofdoom2

11-27-2007, 10:55 AM	#3 (permalink)
Bulwinkle Tubeworm Join Date: Mar 2007 Location: SA Australia Posts: 34 View Gallery Karma Komment	Re: white spots on rock No i have not changed the lighting for some time now. no where near the time in which this has started happening. im really stumped as to what has caused this. Its not all the coralline but just small patches in different areas of the tank

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