stn on acros?

[jjoos99]

I have been experiencing stn lately with a couple of my acros. I am at a loss as to what to do. I have 0 algae in the display tank. I am using seachem salt and my alk level is 11.5, which seems high but my fresh water change water tests the same. I havent added any new corals since june and I have never had any acro flat worms. I have recently switched over to led lighting but I would think that if it would be the lighting I would see problems on the tips. My millis look good but not quite the pe they use to have. My caps are showing some of the same bleaching. Water is testing out good other then mg. being at 1200. I have only lost one coral so far (setosa) but am becoming concerned about loosing any more. I have cut down my ca reactor to try and lower the alk. Any other suggestions would be appreciated. I unplugged 1/3rd of the leds for now.
thanks
Jeff

 

[chefzif]

where was the Satosa? Bottom? changing lighting could have some of the issues and I would slowly lower your alk to 8.6-9.0

 

[jjoos99]

the setosa was close to the bottem of the tank. I have shut down my co2 to my reactor for now to try and let the alk to settle down but it hasnt dropped down much at all. My water changes with seachem are testing the same at about 11.
Jeff