Coraline?

macperry · 04/20/2007, 06:51 AM

I used to have a nice amount of coraline algae growth on the back wall of my tank, and some scattered on my live rock. Over the last couple of months the purple has faded to a dusty looking white. My params have not changed from Cal:440 Mag:1350 Sal:1.026 Alk: 8.5 dKh Temp: 80F pH: 8.0 - 8.3 What do you think caused the change, and what can I do to get it to grow again?

Peter Eichler · 04/20/2007, 06:56 AM

Any lighting changes like a new fixture or new bulbs?

macperry · 04/20/2007, 07:02 AM

Yes....I went from 54w of SunPaq flourescent to 70w HQI metal halide.

chris wright · 04/20/2007, 07:06 AM

Once your coralline algae adjusts to the light it should grow back. Its like when you do water changes, you drop the water level exposing the algae to a brighter light. Its just the brighter light has bleached the algae, but it should grow back.

Peter Eichler · 04/20/2007, 07:08 AM

Quote:

Originally posted by macperry
Yes....I went from 54w of SunPaq flourescent to 70w HQI metal halide.

And there would be your answer

Coraline will often bleach and die when light changes are made. It will come back in time as long as your parameters allow for it.

macperry · 04/20/2007, 07:10 AM

Thanks folks...I guess I have to pay the price for the new light.....but everything else in the tank sure looks a lot happier!

macperry · 04/20/2007, 07:12 AM

Do either of you know if a SunPod 70w HQI fixture will fire the 150w HQI bulb with the stock ballast?

04/20/2007, 06:51 AM	#1
macperry Registered Member Join Date: May 2006 Location: Neptune City, NJ Posts: 451	Coraline? I used to have a nice amount of coraline algae growth on the back wall of my tank, and some scattered on my live rock. Over the last couple of months the purple has faded to a dusty looking white. My params have not changed from Cal:440 Mag:1350 Sal:1.026 Alk: 8.5 dKh Temp: 80F pH: 8.0 - 8.3 What do you think caused the change, and what can I do to get it to grow again?

04/20/2007, 06:56 AM	#2
Peter Eichler Registered Member Join Date: Feb 2004 Location: Milwaukee Posts: 6,081	Any lighting changes like a new fixture or new bulbs? __________________ April 2015 TOTM

04/20/2007, 07:12 AM	#7
macperry Registered Member Join Date: May 2006 Location: Neptune City, NJ Posts: 451	Another topic.... Do either of you know if a SunPod 70w HQI fixture will fire the 150w HQI bulb with the stock ballast?

04/20/2007, 07:02 AM	#3
macperry Registered Member Join Date: May 2006 Location: Neptune City, NJ Posts: 451	Yes....I went from 54w of SunPaq flourescent to 70w HQI metal halide.

04/20/2007, 07:06 AM	#4
chris wright Moved On Join Date: Apr 2006 Location: Orange Australia Posts: 835	Once your coralline algae adjusts to the light it should grow back. Its like when you do water changes, you drop the water level exposing the algae to a brighter light. Its just the brighter light has bleached the algae, but it should grow back.

04/20/2007, 07:10 AM	#6
macperry Registered Member Join Date: May 2006 Location: Neptune City, NJ Posts: 451	Thanks folks...I guess I have to pay the price for the new light.....but everything else in the tank sure looks a lot happier!