Hello..I have had a 110 gallon aquarium in the past with great results...however I have been out of the hobby for yrs now. My children recently bought me a 75 gallon that I plan on filling with marine fish...problem being is the stand has 2 very limited space on each side for filtration. 14 inch max length MOST ALL sump are 15 inches wide which won't fit. My thoughts are doing a 40 gallon sump to hide heaters, skimmer, ext and a larger canister filter on other side for filtration purposes..thoughts?