150G Mixed Reef Update | Autopilot Mode

I finally was able to raise the KH/CA up to where I wanted it (around 10KH and 400CA) and I have backed my dosing back to about 60ml/day for each and the tank is responding very well.
I am still having some issues with keeping the phosphates up. Every time I test, they are at 0. Might start dosing phosphates soon to try to bring them up to a detectable level. Nitrates are a bit high at about 11-12, but I don't do water changes like I should.
There is quite a bit of ugly algae in the tank and I think it has to do with the phosphates being bottomed out. Will be working on that in the near future
Corals: Plating monti has stopped growing for some reason. But everything else is doing amazing.
Fish: All doing great
Urchins: Both have died. Blue was just old, and the Purple I think was also old, we unfortunately just didn't have him long. Ah well, part of the hobby.
Hope everyone is doing amazing!