Duncan coral

[jorgeherrera89]

I assume op meant 10dkh

Yes that’s what I meant is that good or bad?

 

[Crabs McJones]

Yes that’s what I meant is that good or bad?

10 dkh is within the acceptable range of 7 to 13

 

[jorgeherrera89]

10 dkh is within the acceptable range of 7 to 13

What is perfect measurement?

 

[Crabs McJones]

What is perfect measurement?

I wouldn't say theres a perfect number, just an acceptable range

 

[jorgeherrera89]

I wouldn't say theres a perfect number, just an acceptable range

Thank you for the help.

 

[Scrubber_steve]

So I’ve been noticing for the past week 2 of the 3 heads in my Duncan coral has been closed. My level are good except for my magnesium and calium they were low my mag was at 1110 current at 1260, my calcium was at 340 now at 360. Nitrate at 20ppm. I had it at the medium level of tank in my biocube 14g and so today I decided place it in the sand bed maybe it’s the lighting idk. I have an aiprimehd. Please let me know all the other corals are doing just fine. Thank you

https://www.reef2reef.com/threads/duncan-coral-polyp-retraction-one-explanation.420565/
My Duncan is back in the display now & rarely are the polyps extended during the illumination period.
But when the lights go out the polyps come out, all night.