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Diana K · 07-01-2009, 10:47 PM

A canister is a filter that sits outside the tank, usually below it. Water is carried down to the canister through a stiff piece of pipe inside the tank, to a hose that connects to the canister. Water is returned via a hose to the tank.
The skimmer can be attached to the pipe in the tank that removes the water. I do not thing it can be used with an internal filter you are using.

Keep the surface water just a bit more agitated so the surface film does not form.
You might set up the filter you have so the outlet us just below the surface.

07-01-2009, 10:47 PM	#5 (permalink)
Diana K Senior Member Join Date: Dec 2007 Location: Near San Francisco Posts: 509 iTrader Ratings: 0 Plant Points: 26200	Re: Biofilm removal on surface water A canister is a filter that sits outside the tank, usually below it. Water is carried down to the canister through a stiff piece of pipe inside the tank, to a hose that connects to the canister. Water is returned via a hose to the tank. The skimmer can be attached to the pipe in the tank that removes the water. I do not thing it can be used with an internal filter you are using. Keep the surface water just a bit more agitated so the surface film does not form. You might set up the filter you have so the outlet us just below the surface.