Why is my Duncan coral two heads retracted with good parameters

@jeremy_25 20d

Check flow or anything touching it

@Ragnor_2 20d

Flow good nothing touching

0 Reply

@Kehhaar 20d

Mine did that and it was the flow

@Stobby76 20d

I had flow problems but also had slightly high PO4 that my tester never correctly analysed

@Ragnor_2 20d

Going test everything tomorrow 😌

@brokereefer 19d

Move if possible might be lighting

@brother5of5 19d

My Duncan’s have been pretty bulletproof. But they definitely have gotten mad and closed up shop for a week here and there. But they always come back in my experience.

@LegendaryBamboo61 18d

There’s something off. They say Duncan’s are the canary in the coal mine of a reef tank. Mine do that when something is off. I’ve been dosing with All For Reef and they’ve opened back up.