This is just my way of enjoying tanks but something I think is pretty cool is tiny fish in a huge tank. Like small blennies and gobies that might just randomly show up once a week, and it just gives you a dopamine rush. I dunno if you feel the same but I'm a huge proponent of this (LOL)I have like 85 fish in there with 33 being big tangs or small juveniles of big tangs.
So I'd say 50 or so smalls. I have 4 different schools (kinds) of damsels, 5 pairs of different clowns, hawkfish, blennys, two angels, mystery wrasse, coris wrasse, Pajama & Banggai cardinalfish schools, monos and a few others.
I do need to add more smalls but as you could imagine they kind of disappear in there... LOL
I would love a school of 100 green chromis!!