i have a 100 gal and it nneeds filtering its stocking is 2 o's ,1 fire eel ,1 black lancer cat ,1 senegal bichir i also have a 2500-300 lph pump and 1 21x14x14 water storer and 2 16x12x10 and was wondering if put the pump in the tank ran it up to the large box which will have a layer of foam and a polishing pad then through some biological media and back into the tank or do you think that i should add a small one filled with bio media
