The best filter? One that is properly maintained, along with water changes, and one that fits into ones budget. 
The best filter? One that is properly maintained, along with water changes, and one that fits into ones budget.![]()
My 2¢:
Fluval FX5-
No doubt a great filter, but wouldn't an FX5 cause a LOT of water movement in a 75gal? Perhaps too much?
Not true. I had a fx5 in a 55gallon goldfish tank. I had the outlet in one corner aimed towards the glass, worked great, tank was alway clean. Just have to think it out.