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Old 01-17-2007, 08:45 PM   #1
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green coraline? post purple pink

hey everyone. my 55 reef tank with 70lbs lr with 260watts pc 10k and actinic very old lights thinking 3 years.

my once purple pink coraline algae on my lr is now a green color. is this normal? could it be lack of lighting intensity? i changed on of the bulbs the actinic and double the output of the other 3 so ill change them this weekend.

thanks

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Old 01-17-2007, 09:34 PM   #2
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i would replace all of your bulbs with brand new one's right away. Old light bulbs can give of what i think is a lower or different kind of spectrum and makes for algea heaven from what i here. I replace my pc bulbs every 9-10 months even though they look good they are not.What kinda light fixter do you have? Oh i wouldn't buy your bulbs at the lfs they tend to mark up the prices buy about a 100%. You can get them online at half the price usually. I would try liveaquaria.com they are very good site to order from. I order everything for my tanks from them and never had a problem. have a nice day
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Old 01-17-2007, 09:54 PM   #3
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thx yeah i have had a algae bloom of hair algea and what not replacing them asap. my lfs friend can get me each bulb at 27 $ better than other major lfs @ 50 each.

its a jbj 4 x 65 w pc setup.
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Old 01-17-2007, 10:58 PM   #4
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Yes you are right . Old bulbs can give off a different spectrum that will enhance nuisance algea. When you change the bulbs it should help.
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Old 01-17-2007, 11:16 PM   #5
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The color and growth rate of coralline algae is definitely affected by the spectrum and intensity of your lights.

Different colors (species?) of coralline will thrive or stagnate depending on water conditions and lighting.
Depending on the strains of coralline present, the water parameters, and the lighting, you could see all different colors of coralline including pink, purple, red, green, or white.
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Old 01-18-2007, 04:47 PM   #6
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I would also only change 2 bulbs at once, then wait a month- and then change the other two...instead of hitting your tank with all that new light again all at once.
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Old 01-18-2007, 04:56 PM   #7
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Quote:
Originally Posted by boardsurfer
I would also only change 2 bulbs at once, then wait a month- and then change the other two...instead of hitting your tank with all that new light again all at once.
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Old 01-18-2007, 06:25 PM   #8
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thanks ! ill get one more actinic and wait a month and go for the 2 10ks thanks !
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Old 01-18-2007, 06:58 PM   #9
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Quote:
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I would also only change 2 bulbs at once, then wait a month- and then change the other two...instead of hitting your tank with all that new light again all at once.
Nice idea.
I'll do that next time I change my bulbs.
Thanks.
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