My wife and I only feed our tanks every 2-3 days. If we're going to be gone for a week, we'll feed three days in a row before we leave (no one comes over to feed them while we're out

)
She's working with a 13.5g reef tank containing a chromis, high-fin goby/pistol shrimp combo, an emerald crab and a small band of hermit bands.
I'm feeding a 40g planted fresh tank with around 40 or so dwarf/nano rasboras (espei, dwarf emerald, chili and exclamation point), 7 cory habrosus, 5 peacock gudgeons, 3 stiphodon gobies and a bazillion red cherry shrimp.
Fish do surprisingly well when you don't feed them everyday! A lot of internet wisdom may say to feed multiple times a day, especially with dwarf and nano fish, but mine do just fine with the exact opposite