I've just bought a 6x2x1.5 fish tank. The bloke who owned it was running an UGF and an aquaclear 500 HOB (500 i assume means 500GPH which converts to roughly 1892 litres) I want to get rid of the UGF because i've heard nothing but bad things and i want to go with PFS for substrate. Ive currently got a Fluval 305 running my 4ft cichlid tank and was thinking of combining both the Fluval and HOB filter on the 6ft tank.. If ive done the correct reasearch the fluval (1000lph) + aqua clear (1892lph) = overkill? I want to stick a fluval fx5 on there but will have to save for a few weeks. Will this work till then? I've managed to confuse myself so hopefully someone will be able to help? =)