Please let me know if you think these schools are big enough:
Espei Rasbora/lambchop rasbora - 6 individuals
Harlequin Rasbora - 7 individuals
Golden Tetra/Hemigrammus rodwayi - 8 individuals
Praecox Rainbow/Dwarf Neon Rainbow - 8 individuals (1 male and 7 females)
There are also about a dozen Panda Cories and 1 Bristlenose Pleco in the aquarium, the aquarium is 75 gallons.
I already have 1 espei (he was mislabeled as a Harlequin)
8 Gold Tetras
and 5 Rainbows
12 Panda Cories (at last head count, they keep breeding)
This tank has been set up for quite some time and I've lost some fish due to illness (that occurred more than a year ago) and old age, and am now deciding how to replace some of the fish. Realizing that I have a lone espei has really put a kink in that process (he doesn't school with anyone), and so I'm trying to rearrange everything in a way that will let all the fish still be happy with their schooling sizes while giving him a proper school as well, and all without overstocking.