start small your tanks gonna teach you alot with just a pair of clowns
BUT stay away from blenny's mandarins, tangs, triggers, pipes, butterflys, and angels either hard to feed or just too big
but damsels, dottybacks, chromis, and clowns are good starter fish normally
damsels and dotty get aggressive and clowns get territorial if you do get a pair of clowns wait a few months before looking at anemones they are hard too keep