So I haven't posted an update in a while, so it's probably about time.
I recently recovered from some issues that stemmed from an oversight with my auto water change setup. I noticed my tank was slowly dropping my salinity. I checked my fresh salt water bin, and it was maybe a hair low on salinity. I mixed up a new batch and didn't worry to much about it. About a month or two later, I saw that my hammer coral was closed, which was unusual. Everything else looked normal. A couple of days later, I noticed my montipora bleaching. I did a quick salinity check and I was down to almost 20 ppt

! This was a couple days prior to me going on vacation, so I was a little worried with getting things back into check before I left. I started using my fresh salt water for top-off, but after running some numbers, it would have taken a LONG time to gradually bring it back up with an overall tank volume of about 70 - 75 gallons. I did water changes with some salt water at about 40ppt salinity, and finally opted for throwing some salt into the filter socks in the sump and doing a "rapid recovery".
Although things were in check prior to me leaving, I lost my montipora (which was growing like crazy), hammer coral, and the one acropora I had in the tank. Survivors were the two clowns, the diamond goby, finger leather, half of my gorgonia and my trumpet coral.
I found the problem, which was that my fresh salt water suction tube was floating in my container, so it was sucking both air and salt water. My ATO was making up for the difference, and over time, it dropped my salinity. For now, I've turned off the auto water change and I'll have to re-engineer the suction tube.
I also have a order of corals inbound (listed below) to restock my tank. It's been a while since I've added anything, so I'm looking forward to it.
Blueberry Gorgonian
Purple Sea Whip
Aqua Acropora Frag
Green Slimer Acropora
Blastomussa Merletti Coral
Pink & Green Acropora Frag
Australian Berry Delicious Chalice Frag
Neon Green Zoanthids
BerryLicious Mushrooms
Alien Eye Zoanthids
Candy Apple Zoanthids
Lavender Lord Acan
Green Ricordea Coral
Mystic Sunset Montipora
Light Green torch coral
Now to figure out placement for all of them...