Help! My favia is in trouble!

[glb]

It's hard to see in this pic, but the lower left part of my Christmas tree favia is starting to show its skeleton. I moved it up higher in the tank this morning to see if more light would help. Flow is low to medium. Here are the tank parameters, and I'm aware that some are very high because I dosed too much:

Ca: 525ppm
Alk: 152ppm
Mg: 1530ppm
SG: 1.025
Nitrates: between 10-20ppm (before w/c)
Phosphates: .11

These (except for nitrates) were after a 2g water change that brought them down a little. I'm doing another water change in a few days to bring down the nitrates and phosphates, which I know are too high. All of my other corals: zoas, ricordea, acans, lobo and trumpet are happy and growing. I'm not one to add anything to my tank without really asking a lot of questions. I have sponges, purigen and dr g's nitrate reducer in my sump. The tank is a 12g nano. I thought about adding chemipure elite but I've messed things up before trying to fix something. Should I just leave things alone except for water changes or should I act more quickly. Any help would be appreciated!!!!

 

[glb]

Correction. The phosphate test was before the water change too.

 

[glb]

Additional info. I started using reef roids coral food recently once weekly. I'm wondering if that's the cause of my high phosphates/nitrates. 2 clownfish are fed sparingly.

 

[kuansreef]

That kind of favia is difficulty to keep from what I have experienced.

 

[ontop27]

I have only had a dragon soul favia but I had to place it right next to the glass basically in my tank so it could get as little light as possible. Now it's doing great

 

[glb]

I have only had a dragon soul favia but I had to place it right next to the glass basically in my tank so it could get as little light as possible. Now it's doing great

Good to know. I'll move it to a little cave in my rock and see if that helps. Thanks!

 

[Mike J.]

ontop27 beat me to it, but IME Christmas Tree Favia do best in low light. Put it on the end of the tank down low.

 

[NanaReefer]

I've had my Xmas tree Favia for almost 5yrs now. Not a difficult coral to keep. Sometimes a slow grower. Low to medium flow and lower lighting.
Your pic looks as if it's getting to much light.
Under 4x24w T5HO on SB 20-22" from lights, medium flow.

 

[droblack]

Many favia need low light, mod flow, and steady alk, ca, and mag. See if you can feed it at night.

 

[glb]

Many favia need low light, mod flow, and steady alk, ca, and mag. See if you can feed it at night.

Sounds good. I'll move it when I get home. Thanks everyone!!