Help: SPS bleaching and STN

I wish that was an option. I have a large coast to coast external overflow on that entire back wall so it limits me to placing the MP10's at the bottom half of the tank. I had thought about building my rock up with PVC and laying them on egg crate, then it would give me that velocity.

What do you think? Will this look tacky? My SPS will then be about 6" from the surface.

I am going to buy a RODI unit from BRS. Just looking at the cost of RO in my city, it's going to be $40 just to do a 40 gallon water change. That's not including the ATO water of 15 gallons a week.

Also going to try some BRS GFO in a media bag, in my filter sock. But I'll put it on the output of my protein skimmer.

I really want to get a way from carbon dosing entirely. It's scaring me off.

I am thinking it was a combination of ALK ( initially at 7 and then I slowly raised it to 8), and bad water quality. Lesson learnt, listen to people's advice as they have been there, done that.