i am considering the FX5 to upgrade the filtration on my 150 and was wondering how the baskets are configured. it looks like that are half circles that form a wall around a central area in the canister, but are there media baskets in that center area? i usually setup fluvals with the top tray as the bio media, the bottom one or two trays packed with filter floss, and the other one or two trays with carbon. this works really well for water clarity especially, could i get the equivalent to this on the FX5? how about maintenance when you actually have to get into the canister and clean it out, how much of a hassle is it? im very familiar with the other varieties of fluval but havent been able to actually see the inner workings of the FX5.