Two different problems problems affecting only my chalices

[fishfoo]

Background info:
ph: 8.4
Nitrite: 0
Amm: 0
Nitrate: 0-5
Temp: 78

This is my second tank and it's been up and running for two months now.

Ok, so I'm in desperate need of advice/help. Since receiving two different mycedium corals (one large colony of mystery chalice and one frag of Aquacultured Raspberry Eye Robokaki chalice) two weeks ago, I've run into a different problem for each.

For the larger chalice, the flesh is deteriorating moderately fast and I have no idea how to stop this or what is causing this to happen...

For the Robokaki, the flesh has been turning more and more brown since acclimation. I have acans, brains, zoas, frogspawn, favites, and cyphastrea, all of which are thriving. So I have no clue why the chalices are not. Any help would be greatly appreciated. I really don't wanna lose these guys.

Thanks in advance for your help

 

[dalston]

What lights are you running on the tank and what's your alk at?
The browning out could be too much white light...

 

[fishfoo]

What lights are you running on the tank and what's your alk at?
The browning out could be too much white light...

Alk is low. A little over 7. And I'm just using the Compact florescent's that came with the jbj nano cube for now. Ordering an AI prime in a week. But everything else is doing very well and even growing in some cases.

 

[Vinny Kreyling]

My alk went low & I lost one.

 

[fishfoo]

My alk went low & I lost one.

So you think that the low alkalinity is the problem with my chalice's flesh deteriorating? I personally feel like it is almost some sort of disease because it started on one side and is going from left to right instead of all around. It's getting worse though and I have 0 clue what to do. Should I split it in half to separate the (supposedly) healthy side from the side that's dying?

 

[Tweaked]

Get them out of direct light completely for a while.

 

[fishfoo]

Get them out of direct light completely for a while.

Will do. Thanks for the advice.