Porites coral STN help

[jg93]

Hey folks -

I purchased a large branching yellow Porites a few months ago that until now has been doing great. I've end up adding a bunch of new SPS frags at once and underestimating how much Alk they'd suck out of my system, and it's taken me a while to right the course. I'm assuming my ALK swing is what caused this.

Everything in the tank if fine but my Porites tips have begun to STN. Is there anything I should do to help it? Cut the tips? Move it lower in the tank? or should I ride it out and hope he bounces back.

Any help/advice would be appreciated. Current specs

75Gal
PH: 7.9 to 8.1
ALK: 8.5 DKH (use Kalk 2tsp/gal, and now a 2part additive to keep up with ALK demand)
Ca: 420 PPM
Magnesium: 1300
Nitrates: 10 PPM
Nitrite: 0
Ammonia: 0
Phophates: 0 'ish' - Hannah checker (run GFO/Carbon through BRS reactor)

Flow - 2 MP10s
Sump- Small refugium, Eshopps Skimmer rated to 150

Everything is steady as my tank is currently fish fallow as a wait out an ich outbreak.

Thanks -

JeffG

 

[slapshot]

They are fairly easy providing you give them the big three, light, flow and steady parameters. If it has lots of light and flow then it was your alk. Tips burning like that is usually a sign of high alk. low alk usually shows up as STN from the bottom. Steady as she goes and it will probably recover. BTW they like tons of light and flow. Too little of either and it will die on you.

 

[jg93]

Thanks slapshot.