Penelope birds nest turning black!

[ConnorG]

I got a Penelope birds nest a couple weeks ago at a local *** swap and I noticed it is bleaching somewhat and turning black at the base and tips! I don't know why can someone please help me I love this thing!
My parameters are:
Nitrite:0
Amonia:0
Nitrates:10
Calcium: 450

Lights are mh/t5 mix for a total of 356 watts over my 75 gallon. My other birds eat is doing good I think so I don't know what's wrong here r some pictures

Here is my other one... How does it look?

 

[jscarlata]

Two different kinds of coral. I believe the ponape likes less light, put it lower in your tank or give it a shadier spot
Mine goes white on the tips if too much light. Down low it gets it's green branch/purple tips back quickly, tough coral to place imo

 

[Alkamist]

place it lower i have one and its been sitting on the sand for a few weeks and getting decent growth.

 

[ConnorG]

I just moved him but there r no shady spots in the sand for him. Right now I have him in about mid tank in a cave where he get just a little light but good flow. Is that ok?

 

[ConnorG]

Bump

 

[Donkeykong]

mine had a few spots bleach, algae grew on those dead spots and were black. The rest of the coral is growing well and has not been effected by the few dead tips.