im new to the site, i have stated building my first tank, 12ftx5ftx8ft high, i was wandering would it be possible to use a swimming pool filter as my filtration? and not worry about a sump? i have already started building this and today my wife decided i cant tear down the walls, so now trying to find solutions, i built a maint room that is 5ftx5ft and i dont think a sump would fit. thanks for all help and advice.