260g (300 total) Mixed Reef

I've taken over the large fish tank at work. I figure since I'm on here asking questions and searching for answers, it will probably help to have this here for reference. I'll update with pictures at some point; going to try to take some this weekend. Although I spent three hours working on the tank last night, so my wife might veto weekend time.

Here goes:

260g display tank, 84x24x30
3x Radion xr30w Pro
2x Vortech MP60
Reeflink for lights/powerheads
Shallow sand bed
40g sump
Two filter socks over a settling chamber
ReefOctopus Biopellet Reactor
ReefOctopus Diablo250 (500g rated) skimmer
Carbon tumbler
I have a Phosphate reactor, but it's not online right now.

Tank is built into a wall and visible from both sides.

Shooting for:
Ca: 440
kH: 8.3
Mg: 1440

Dosing ESV supplements as necessary to maintain parameters.