Wow how much food did he put in? I always tell my mom 1 pinch in the morning and 3 small pinches at night whenever I'm away and I always get back to slightly bloated fish and a mom saying they were still eating so I did 3 pinches this morning and 4 at night. At least they weren't too bad.
I peeked in on them this morning and my Synodontis came out from under his rock. OH MY!!! That is a fat lil catfish!! I was like, "Oh no, not you too!!!"
These are the first pics I have seen of your tanks D, and they are gorgeous! My female clown looks like your synodontis does ALL the time! She fights Fury my fire oscar for food, ballsy little #29###. I feed a huge meal once a month right before I do my 90% water change. I do 50-50-50-90.
I use algae wafers to keep everybody pooping on schedule. Fury looks like a dog fetching a frisbee cuz she picks it up whole and swims around with it until it is soft enough for her to shove in her mouth. I love that monster!