I've finally decided to set up my first marine tank after many years of freshwater success. I am going to turn a standard 55 gallon freshwater starter kit into it. The kit comes with the aquarium, hang on back filter, heater, light, and some chemicals(all for 150 bucks). My question is how can I best filter this set up?? I know I will use the hang on back filter because I may as well...but I want to set up a protein skimmer in a sump. I have an empty 29 gallon I could put the skimmer in. Is it correct that I would need an overflow box to get the water in the sump? How should I set this up? I'm under the impression that the skimmer takes the water and pushes it through tubing back into the aquarium? Is there some kind of overflow box that would pull in the same amount of water as the skimmer would be putting back out? I don't know much about how these work and any info is appreciated. Also, what kind of skimmer/overflow box is good considering its 55 gallons? Please let me know if you have any suggestions and information.


