i’ve raised and loved endler’s livebearers, dwarf shrimp, ghost shrimp, bettas, sparkling gourami, kuhli loaches, rice fish, dojo loaches, dwarf pea puffers, and african dwarf frogs at various times.
my favorites are dojo loaches (so friendly, like water puppies!) and sparkling gourami (inquisitive, intelligent, fun to watch).