I use them all three ways
Air driven I keep them in sumps for extra bio , gas exchange and seeding new tanks.
On canister filter inlets increased bio capacity and less time cleaning filters
Power heads for increased circulation in larger tanks, sponges need to be cleaned more. Use the pro pond sponge filters for this application .
Sent from my iPhone using MonsterAquariaNetwork app
Air driven I keep them in sumps for extra bio , gas exchange and seeding new tanks.
On canister filter inlets increased bio capacity and less time cleaning filters
Power heads for increased circulation in larger tanks, sponges need to be cleaned more. Use the pro pond sponge filters for this application .
Sent from my iPhone using MonsterAquariaNetwork app
