What's up with my zoas?

blackthunda77 · 07/16/2019, 07:03 PM

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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Kevin Guthrie · 07/17/2019, 09:56 AM

Check your iodine level, but looks like fish are irritating them.

blackthunda77 · 08/02/2019, 06:47 AM

Quote:

Originally Posted by Kevin Guthrie

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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07/16/2019, 07:03 PM	#1
blackthunda77 Registered Member Join Date: Jan 2004 Location: East Coast/West Coast Posts: 4,887	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. Sent from my SM-N960U using Tapatalk __________________ - 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.

07/17/2019, 09:56 AM	#2
Kevin Guthrie Registered Member Join Date: May 2013 Posts: 506	Check your iodine level, but looks like fish are irritating them.