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Old 10-18-2004, 04:48 PM   #1
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coraline algea "bleaching"

Hey gang.

I noticed that a significant amount of coraline algea has started to bleach on one of my rocks. (it turns bright white.)

Is it dying? should I start dosing with calcium?

I do not at this time know what my parameters are currently, I will do a test when I get home tonight. Last time I checked was friday and they were fine then.

I do have a significant amount of tap water still left in the system. could this have something to do with it?
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Hardware: 37 gallon SW tank and stand by Oceanic Systems, Magnum 350 Pro Canister Filter (half carbon), CPR Bak Pak 2R skimmer, Maxijet 1200 Powerhead, RenaCal 150 W heater, Compact fluorescent lights with moonlights. 40 lbs of liverock, 3" sand bed.

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Old 10-20-2004, 12:59 AM   #2
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Checked my parameters tonight.

everything is 0 across the board. ph is a steady 8.2 and temp ranges between 78 and 80 degrees.

any clues as to what could be going on?
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Hardware: 37 gallon SW tank and stand by Oceanic Systems, Magnum 350 Pro Canister Filter (half carbon), CPR Bak Pak 2R skimmer, Maxijet 1200 Powerhead, RenaCal 150 W heater, Compact fluorescent lights with moonlights. 40 lbs of liverock, 3" sand bed.

Software:2 Tank-Raised Ocellaris Clowns, 1 Purple Firefish, 1 Electric Orange hermit crab, 18 Blue Legged hermit crabs, 8 or so Nassarius snails, Xenia, Blue, green, and Green Striped Mushrooms.

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Old 10-20-2004, 01:31 AM   #3
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What are your alk/Ca readings and what kind of lighting do you have?

Cheers
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Old 10-20-2004, 10:29 AM   #4
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do not know the alk/Ca readings right now. need to go get a test kit.

I have the standard hood light right now. Does this affect coarline growth? I thought that coraline algea was not affected by light or the lack there of.
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Hardware: 37 gallon SW tank and stand by Oceanic Systems, Magnum 350 Pro Canister Filter (half carbon), CPR Bak Pak 2R skimmer, Maxijet 1200 Powerhead, RenaCal 150 W heater, Compact fluorescent lights with moonlights. 40 lbs of liverock, 3" sand bed.

Software:2 Tank-Raised Ocellaris Clowns, 1 Purple Firefish, 1 Electric Orange hermit crab, 18 Blue Legged hermit crabs, 8 or so Nassarius snails, Xenia, Blue, green, and Green Striped Mushrooms.

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Old 10-20-2004, 10:52 AM   #5
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Certain colors of coralline can survive quite well and indeed thrive under lower light. Such as green, red, orange and black. The pink and deep purples will not normally do well with lower light and typically need about 2+w/gal to be maintained. Coralline actually thrives under true actinic lighting. If the lights you have now are even close to that I would suspect the water chemistry or some recent change.

Try getting the water tested at the LFS to see where things stand. Have you checked at night for the possibility of an urchin?

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Old 10-20-2004, 11:57 AM   #6
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hmmm...intresting...an urchin.

I doubt that is the problem.

I think I am going to get a 10,000K bulb soon and use that till I can get my lighting upgrade, The other problem is possibly the tap water still left in the system.
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Hardware: 37 gallon SW tank and stand by Oceanic Systems, Magnum 350 Pro Canister Filter (half carbon), CPR Bak Pak 2R skimmer, Maxijet 1200 Powerhead, RenaCal 150 W heater, Compact fluorescent lights with moonlights. 40 lbs of liverock, 3" sand bed.

Software:2 Tank-Raised Ocellaris Clowns, 1 Purple Firefish, 1 Electric Orange hermit crab, 18 Blue Legged hermit crabs, 8 or so Nassarius snails, Xenia, Blue, green, and Green Striped Mushrooms.

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Old 10-20-2004, 04:25 PM   #7
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Quote:
Originally Posted by RocketSeason
The other problem is possibly the tap water still left in the system.
It's a possibility but if you run carbon, most problem items would have been removed for the most part. Problems like these are typically water chem (alk/Ca) and/or lighting.

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