Duncan closing/turning purple

[DrewL]

Duncan is ticked, what can I do? First pic is when I first placed in tank, 2nd pic is after removing from plug and 3 days later, is it just stressed? Looks like the flesh turned dark purple as well.

Temp- 79
Salinity 1.025
Phosphate - 0.2
Nitrate - 10ppm
Calcium - 380
Alk - 11 dkh
pH - 8.2

 

[blaxsun]

Is it getting enough flow, light and food?

 

[DrewL]

Is it getting enough flow, light and food?

Yeah deff, it actually really hated even medium flow, so I have it in a lower flow spot. Light is good & fed 2 days ago

 

[Mr. Mojo Rising]

how old is the tank? it looks pretty new, corals take a while to adjust to new tanks.

 

[blaxsun]

how old is the tank? it looks pretty new, corals take a while to adjust to new tanks.

That was my next question. I only see a bit of algae growth.

 

[Science/G]

Just dont blast it with light. Feed, provide solid flow and keep parameters in line. Alkalinity is high. Imho. My corals freaked out when my alk was that high. Lost some to bleaching. The natural seawater I use tests between 7 and 7.7 dkh depending on the batch Take it slow, research what dkh your salt mixes at. Try to get the dkh down and see if it gets happier.

 

[blaxsun]

Phosphates could be a little lower... calcium a bit higher as well.

 

[Uncle99]

New tank, high PO4, not a good combo.
With little biodiversity there’s little to consume PO4 which leads to less “food” for corals.