Afternoon guys. I have been having Alk issues as of late my tank. I recently had an alk spike from 8.5 to 11 and all of my sps suffered big time. Most are dead or going to. I did a water change , using @Aquaforest reef salt, and lower it to about 9.1 on Saturday. Currently i am not dosing anything, but alk keep creeping up to 9.7 today. All i do is feed Rods daily. Please help