That's a good amount of usage!
Try keeping the alk swings to less than 1 a day. I've had bad experiences when I've done more.
Definitely been something that has accelerated more recently, which is why I can’t wait for my 2-part to get here. I want to keep it level day-to-day. As mentioned, maxed out with all kalk top off the past few weeks. But my tank just doesn’t evaporate that much water day-to-day.
I’ve really been paying attention to the tank and getting it cleaned and stable the past couple of months. I think it’s hitting a tipping point where the corals are happy and growing, and consumption is going up.
Also, have added a bunch of SPS frags since November and they’ve finally settled in and started growing too.