I have a 46 gallon bowfront aquarium that I am setting up as saltwater. Right now It has about 10lbs of live rock, two large pieces of rock that the store recommend to be seeded by the live rock, 1 clownfish, 2 damsels, and a brittle star. I have a protein skimmer running on it that is producing a good amount of foam. My main problem right now is all I have for filtration is an Emporer 400 hang on filter left over from when this was a freshwater tank. I am thinking of going with a wet/dry trickle filter and was wondering if I could get some opinions. Also any other opinions and ideas would be appreciated. Thanks!