New tank advice/input

[prosnow]

Well almost got my dad fully convinced to let me turn his 90 gallon freshwater into saltwater...i'm thinking I would only want to do a FOWLR, not to sure on fish yet...i've always wanted a puffer and or a lionfish but who knows, i'd still have to get the tank drilled for an overflow, plumb up a my sump/return and buy a whole bunch of LR,

my question is, whats the minimum i should do for lighting? just some 50/50 pc's?

also, i know puffers and lion fish both get big but untill they did, would a yellow tang and a niger trigger be alright with them? any other suggestions or input on anything???