That's great advice, I hadn't thought of that. My hippo was the size of my fully grown chromis when I got her, but in only a couple weeks I think she's already outgrown them. When I provide food she likes, she eats like an absolute pig which makes me feel good because I assume she needs the most food as the largest fish in the tank. I haven't seen aggression from the hippo yet, just more of a "carry a big stick" type personality. The other fish seem to be put at ease and follow her around like a mob boss.
I have my auto feeder set up for small doses in the morning about an hour after the lights come on (when I'm at work), then I typically feed frozen at night so I can attempt to get some higher nutrients to both the fish and corals. Last night I had basically the whole tank suckeling from the end of my turkey baster as I very slowly let out a concoction of fresh ROE, spirulina, mysis, etc. I did that until I saw my key fish take big bites so I knew they were for sure eating, then broadcast the rest a bit so they could all find their dinners.