I want to have a dwarf lionfish, a yellow tang and maybe a couple more.
whoa, bad mix. Tangs are reef species and herbivores, require a LOT of macroalgae, nori, and vegetables (My friend feeds his cukes even) and lionfish are messy messy predators. Lions muck up the water, tangs require high water quality and a LOT of space. Yellows can be housed in 60 gal
reef tanks, but 100+ is much more advisable. Now triggers are often just as colorful and much more compatible than tangs with lionfish. So are groupers, eels, and angels. Research is your friend, better to go slow with no casualties than charge in and lose fish and cash on poorly planned exuberance. HTH
! With patience and knowlege, you will get just as hooked on this as the rest of us!