ID and what's wrong with it please

[b4tn]

Can any one ID this coral and give advice on what's wrong? It's the only coral in my reef that is suffering. It's slowly getting white from the outside in. I thought it was a Favia but the brown edges around the mouths are stony and sharp. Sorry for the bad pics, it's all I have. Currently it's in a lower flow and light area under a ledge. If I squirt reef roids over it all the mouths open up. My alk and calc are a solid 9 and 490. Nitrates and phosphates are unreadable.

 

[USMC4Life]

It looks like it's getting bleached. It can be several things. One could be the light, too much or not enough. Or the water flow. Or the two. I could be missing something.

 

[b4tn]

Any idea on what it is?

 

[b4tn]

It started white on the outside edges when I bought it. The white is slowly working its way towards the middle. All the mouths stay bright green.

 

[pablue]

looks to me like the corals starting to lose the tissue because of too little light. it's a maze brain right? what are the tank specs for lighting? I'd move it up out of low light and into med light and probably into some more flow.

 

[b4tn]

Tissue is still there. At night the white parts swell up like its feeding and some of the green heads are still nestled inside the cups. I will try and get a better pic here in a bit. Doing several searches I think it is a Favites

 

[pablue]

also i wouldn't ever worry about phos and nitrates when figuring out problems to do with LPS like that

 

[pablue]

how high are the ridges on it from the mouths?

 

[pablue]

deep ridges= maze
shallow= favia

 

[b4tn]

Lighting is Ocean revive t247's 60 blue 40 white

 

[pablue]

yeah move it up a little and into more flow

 

[b4tn]

Here are a couple better pics. One with a actinics one without.

 

[pablue]

yep just lacking light if i had to guess. what else do you have in the tank? i can compare it to something else as far as light needs go

 

[b4tn]

Here is a recent full tank shot. It was out in the front center in the sand bed in full light before it started fading. That's why I moved it to the shade. I have Duncan's, red dragon acro, a couple lepto's, hammer, stylo, monti, war coral, birds nest, Zoas, GSP, and a milli. I'm sure I'm forgetting something

 

[Acro maniac]

Double post ( edited)

 

[Acro maniac]

I kind of breezed through the replies and didn't see anyone ask about your mag levels. That would be a the first place I would look, mag basically helps in the calcification process. Ime lighting usually effects the entire colony not just the ends. Where sufficient or insufficient ions/elements inhibits growth.

 

[pablue]

hmmm..... mags would also be a good idea to look at. @Acro maniac is right with what he said from what i've had happen! also if it was in full light and then it started fading did you just move it to the shade? if so leave it there for a while because i might also have been getting to much light and not that its in shade it could turn around. i though you had it in that area the whole time, My b

 

[b4tn]

Thanks for the input guys. I test weekly and my last test mag was 1360. I will keep it shades for a few more weeks and spot feed it at night with reef roids and see how it goes.