i am setting up a 60 gal. hex and i am thinking of getting seahorses. any advice on filtration would be helpful. i had this set up as a freshwater and i have decided to go salt. i had a mini reef tank a few years ago but the tank got broken. what kind of filtration would be best for my tank? it is roughly the size of a fifty five gallon drum. should i just use power heads to keep the bottom of the tank ciculating? i was thinking a wet dry or could i use a refugium. they are new to me put the lfs has one and it seemed like a cool idea. any advice would be greatly appreciated.