ok i have a 150 gal tank. what type of filtration should i use. its gonna have 2 gars a atf channel cats. the only kind of filter i have ever used is like those emperor type. so if you thing i should do something else pleace explane it bc i want to learn how they work oh and how much bc im not rich. i know alot of u guys on here have sep tanks and canasters and stuff and im lost with all that. pleace educate me MFK