depend? how big the tank? what fish you wanna keep or keep? pretty much you can use the same kind of filter you use for a freshie tank on a salt tank, you do need a protein skimmer though, saves you alot of work my friend.
im either goin with a 55 or 120g salt. i was goin with a protein skimmer deff. but i dont know what the best filtration would b. i was goin to go with tetratecs cause of the internal heater. didnt want the triggs to break them........should i go with an XP1 and a tetratec?
ive heard those are good but do u have to do something different to those than others cause of the layout of the carbon n sponge...like can u leave the bags of carbon in longer...then like a penguin 330 or similar power filters?