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white macro?

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Lewy View Drop Down
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    Posted: January 03 2011 at 2:37pm
I got some wine glass caulpra a while back. It was growing wonderfully then I noticed it would be white in the morning when the lights first turned on then would green up latter on in the day. yesterday I noticed it didn't green up at all and now the green is in lines. I don't have a pic right now. It's almost like the photosynthetic cells have been sucked out of it. It's not squishy but feels like when I first got it. Is it dying or is this normal?
Params
Ca=500
Alk=14
Mg=1400
PH=8.4
Nitrates >10
Phosphates >.5
40 gal w/ 20 sump
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Mark Peterson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark Peterson Quote  Post ReplyReply Direct Link To This Post Posted: January 03 2011 at 3:15pm
That means it's dissolving away. Most often this happens because it ran out of nutrients. Add some food to the system or remove another algae that is eating nutrients upstream ahead of the Caulerpa.
How long has the Mg been at 1400? This is usually not a cause but I've been seeing more and more hobbyists keeping Mg at elevated levels, so I'd like to see if high Mg might be a contributor to the Caulerpa's demise.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lewy Quote  Post ReplyReply Direct Link To This Post Posted: January 03 2011 at 3:27pm
Am I too late? I've got chaeto in the display with the caulerpa. I'll cut a bunch of it out and do a water change and see if it will bring it back. about where should my Mg be? as for how long, I've only had a Mg test for about a month which is about when I added the caulerpa and it's always been at that level.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lewy Quote  Post ReplyReply Direct Link To This Post Posted: January 04 2011 at 11:55pm
Well I was too late, snails and crabs had a good meal. I did realize something interesting. the decline started when I switched from tap water to RO for top off. I guess it really needed the extra stuff I was giving it.
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Mark Peterson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark Peterson Quote  Post ReplyReply Direct Link To This Post Posted: January 05 2011 at 11:22pm
yep
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