Fluval 406 vs 407: The Battle of the High-Performance Canister Filters!
The Fluval 406 and 407 are both canister filters that can be used for freshwater or saltwater aquariums. They are both quiet and have a self-priming feature. The main difference between the two is that the 406 has a flow rate of 206 gallons per hour and the 407 has a flow rate of 307 …