Blackening Stalk Candy Cane Coral

[tldragoon]

Hey everyone, I've had this coral for 2 weeks now. I'm pretty sure the stalk is turning black. I'm assuming this isn't normal (or good). Any remedy? More/less light? It's placed in mid area on my tank (fluval Evo 13.5). The tank is only 2 months old. Lighting is AI Prime HD 16. Parameters as of yesterday: ph - 8.2, Ammonia - 0, Nitrite - 0, Nitrate - 2, Alkalinity - 8, salinity 1.025. Any help is appreciated.

 

[fishguy242]

hi,hard to see,can you post pic under whites? possible sponge??

 

[tldragoon]

hi,hard to see,can you post pic under whites? possible sponge??

Here's some more pics.

 

[fishguy242]

coral looks happy and healthy,but still cannot see the black in pics?? poss take pic with flashlight on area??

 

[tldragoon]

coral looks happy and healthy,but still cannot see the black in pics?? poss take pic with flashlight on area??

It's the base of it, near the frag puck, maybe that's normal...