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Old 07/16/2019, 07:03 PM   #1
blackthunda77
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What's up with my zoas?

Whats up with my zoas? Cross posting in a couple different forums to try to nail this down. My zoa colonies are not looking too hot. Not opening all the way. Started about a month or so ago, that I noticed. Started mainly with one colony, but now it seems to be affecting more colonies and in different parts of the tank.

I dont see any fish picking at them, and I dont see any pests like spiders or nudis.

Full disclosure, I'm running a hybrid Triton method so I haven't done a water change on months, over 6 probably. Last triton test everything came back pretty much in order aside from low iron, iodine, etc.

Other elements are...
Alk - 8
Calc - 410
Mag - 1380
No3 - 1+/-
P04 - 0.08

Can it be something else I might be overlooking? I know my carbon is old. Over 2 months, will probably change that out tomorrow.

All other coral seem to be doing fine, Lps, scans, green palys, montis, birdsnest, etc.

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*blackthunda stands for a black Mistubishi 3000GT with black rims I used to own. Don't get any funny ideas!

Current Tank Info: 200 Gal custom tank with dual corner overflows, 80 gal custom sump/refugium, Neptune Apex controller, Dual Lumenmax Elite reflectors with 250 Radiums, SWC 160 Cone Skimmer, 2x Jebao WP-25....and some other stuff.
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Old 07/17/2019, 09:56 AM   #2
Kevin Guthrie
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Check your iodine level, but looks like fish are irritating them.


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Old 08/02/2019, 06:47 AM   #3
blackthunda77
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Quote:
Originally Posted by Kevin Guthrie View Post
Check your iodine level, but looks like fish are irritating them.
I have watched the tank and I really cant say any fish are irritating them. Obviously I cant sit in front of the tank all day, but from my observation, I dont see it happening. I have mostly wrasses, exquisite, pintail, naoko, black leopard, regular leopard, yellow tail tamarin, yellow tang, and 3 anthias.

Getting conflicting signals thought. Some are stretching like they need more light. But I have 2 250w mhs, and 3 120w led modules. And some seem to have shrunken their skirts, or getting smaller. Like too much light. Maybe I need to spot feed?

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__________________
- John

*blackthunda stands for a black Mistubishi 3000GT with black rims I used to own. Don't get any funny ideas!

Current Tank Info: 200 Gal custom tank with dual corner overflows, 80 gal custom sump/refugium, Neptune Apex controller, Dual Lumenmax Elite reflectors with 250 Radiums, SWC 160 Cone Skimmer, 2x Jebao WP-25....and some other stuff.
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