Tested some of this tank for the first time in, possibly ever.... Covid boredom
Alkalinity 7.3
Calcium 400
The 4 gallon has surprisingly lower levels. But it gets auto water change normally every day. Recently with us being on vacation I cut it to every 3 days and I haven't bumped it back up because I'm not allowed to go to out to get more water. No, I don't make the water for this tank like I do the bigger tank. I buy a jug of nutri-seawater from work and it fits perfectly into a little spot for me. Not the greatest, but nothing too demanding in here and as you've all seen, it looks good anyway.
Ordered an rfg nozzle for this tank, it'll be here Monday, I think. Looking at some more minor upgrades for it (thinking back by the media area).