Leather Coral Help

[b.clark]

Help with leathers. I’ve had several different types of leathers and none do well. Most will not open or extend polyps.

I have tried more flow, higher up placement, different locations. Not sure what else to do.

Torch’s, Hammers, candy canes, mushrooms, zoas, Duncan, acros all doing great and growing.

Tank is 75 gallon with sump set up for 1 year.
Lights ai hydra 32
Jabeo scp 90 flow
Salt 1.025
Alk 9
Calcium 500 little high but I don’t think this is the problem
Mag 1340
Nitrate 12
Phos .09

I had this same set up with different scape 3 years ago and leathers did great.

Only difference is 3 years ago I didn’t run a glass lid. This time I am. Could glass lid be my issue.

 

[b.clark]

Tank photos

 

[b.clark]

Tank in more white light

 

[JonoH]

PH?

Leathers can be sensetive to PH fluxuation, how stable is it with glass lids?

 

[b.clark]

Not sure on PH. Never tested it. Would glass lid effect PH

 

[JonoH]

Not sure on PH. Never tested it. Would glass lid effect PH

I could be wrong, but i was always under the impression that PH was all about Gas exchange.
With a glass lid, your limiting the amount of fresh air that can allow for this.

 

[b.clark]

I’ll take my lids off for a week or do and see what it does

 

[JonoH]

I’ll take my lids off for a week or do and see what it does

I notice that my leathers recede while dosing Alk, which can cause a PH swing also. So fingers crossed thats all it is!
Might be worth making sure your skimmer is sucking air from outside if possible also.

 

[Bruttall]

Yes lids can drop PH. easiest way to raise ph is increase oxygen in the tank area either with fresh air to the tank itself or plumbing your skimmers intake from outside the house.

Having a rotation of 3 adults, 3 cats, 2 dogs and 2 kids at my house I see ph swings when more people/animals are here, they just SUCK ALL THE OXYGEN outta my world!! :)