Thanks for the compliment!
1. Generally, I do not target feed. I squirted clam eggs for a couple months back about a year ago and I tried reef chili, but did not notice anything.
I squirt a couple cubes of baby brine shrimp once a month or so - if that often now.
I do feed mysis shrimp to the brain and favia corals about once a month. It is a bit of a pain as the shrimp and crabs swoop in to eat it from them so I have to guard them with a turkey baster. FYI regarding my fish feeding, I feed the fish once or twice a day a couple cubes - mysis and brine shrimp daily...and a few pellets of sinking food or a pinch of flake food from time to time. I also feed seaweed selects green algae sheets on a clip every morning.
2. I do typically run carbon (a cup or two in a reactor) with a 600 lph maxijet pump, but no GFO.
3. I generally average about a 20 gallon water change once a month lately.
I'll post some pictures of my pumps/sump/refugium/RODI/water change system for reference tomorrow.
Any more questions, let me know!