If a trace element was a dino driver, then large water changes would resolve the issue - unless there's a continuous source leaching into the water.
I'm normally a fan of fighting, but in a new system with few corals, I'd remove the corals for their own safety and health... Then restart with a normal ecosystem.
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Failure isn't an option It's a requirement. 660g 380inwall+280smp/surge S/L/Soft/Maxima/RBTA/Clown/Chromis/Anthias/Tang/Mandarin/Jawfish/Goby/Wrasse/D'back. DIY 12' Skimmer ActuatedSurge ConcreteScape
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