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Tweaking in what way? And what other corals do you have? Since that appears in one area of your Euphyllia, I'm wondering if the current has changed there, or it's downstream from another coral.
Were it me I'd do a partial water change to see if it perks up. If not, I'd start checking variables as I described, and I'd be doing water tests. Got to be a reason why your frog spawn is acting like that in that region.
Dave
When a finger points to the moon, the imbecile looks at the finger.
Omnia mutantur nihil interit.
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