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Old 12-29-2010, 12:48 AM   #11
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I asked before, but maybe it got overlooked...

How long have you had these palys and did they ever have color? Your post kind of makes it sound like you've had them 6 months... if that's the case how long ago did they bleach?
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Old 12-29-2010, 12:59 AM   #12
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6 months is correct. They were very colorful the first three or four months, and then they bleached out on me.
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Old 12-29-2010, 01:13 AM   #13
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I'd get a refractometer and check your salinity. That's probably the easiest thing to do, to start with.

How long has the tank been set up, and what salt mix are you using?
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Old 12-29-2010, 04:49 PM   #14
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I have had the tank about a year. One thing I forgot to mention is that I have only had the coral life lights for about two months. Before that, the zoas were under a fluorescent light that was a coral light, that was blue. That may have been the culprit. I am planning on moving them under my rocks for a bit to see if that helps. Also, I have always fought a borderline nitrate level. Is there something I can do or add to help that?
Once again, thanks
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Old 12-29-2010, 06:20 PM   #15
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OK... I'm getting confused now!

Quote:
One thing I forgot to mention is that I have only had the coral life lights for about two months. Before that, the zoas were under a fluorescent light that was a coral light, that was blue.
What exactly has changed? Are you saying you were running 2x blue tubes before, and now you're running 1x white and 1x blue? Or are you saying that you got a completely new light fixture 2 months ago?

How many Watts do you have now, versus 6 months ago?

Regarding nitrates... water changes are your friend. Do water changes to get the nitrates down and then figure out where they're coming from. Probably that Mircrovert stuff I mentioned earlier.
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Old 12-29-2010, 06:46 PM   #16
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Kinda skimmed this quick but I've had simular problems in the past with purple deaths and PPE. Usually it was because they were getting to much or not enough light.
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Old 12-29-2010, 06:59 PM   #17
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I got a completely new fixture. The last one I had was a single flourescent bulb that had a coral sun actnic 420 bulb. I have since replaced this fixture with the coral life. Also, will back off on the microvert food as well.
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Old 12-29-2010, 07:13 PM   #18
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the fixture is 2 x 39 watt t-5 ho, correct? this one?
Coralife Aqualight High Output T5 Aquarium Lighting Fixture 2X39W 36 inch Coralife T5 HO
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Old 12-29-2010, 09:51 PM   #19
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Yes Doug, that's the right light fixture.
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Old 12-29-2010, 10:00 PM   #20
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then it's a lot more light in a short time. it's enough to shock corals to the point of bleaching. it's not necessarily high lighting, but the sudden change is the issue. keep it low for a while. it should bounce back in time.
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