Paul1792
Aquarium Advice Freak
****Ok, thanks for the good information. I think I've got my heart set on the Fluval C series now. XD I might try to get a C4 to work along side my Marineland Penguin. Or completely replace it.
What size tank is it?
If it's up to 38 gallons, C4 is all you need but be sure and run them side by side for a while. 55 gallons or more and both filters are probably a good idea.