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Re: why won't my coral polyps open?
Posted: Sat May 17, 2025 9:52 pm
by EvilSeren
Could be a chemical warfare thing. Any LPS near your Zoas? My Hammers once pissed off the whole tank. Carbon dose might help.
Re: why won't my coral polyps open?
Posted: Sat May 17, 2025 11:49 pm
by bikerod
Test magnesium too. Low Mg makes Zoas sulk. Keep it above 1300 ppm.
Re: why won't my coral polyps open?
Posted: Sun May 18, 2025 12:46 am
by finnleyocean
My tank's Zoas closed when I overfed. Maybe cut back on mysis for a bit?