Canister Filters? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 09-23-2012, 09:26 PM Thread Starter
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Canister Filters?

I know this topic has been talked about many, many, many times.

I'm not new to keeping tanks, but new to canister filters, I have 2 other tanks (20/25) that have carbon filters, but this time i have a 46 gal bow tank and i'd like to try a canister filter this time.

I've read about them but still confused. What kind should i get for the 46 gal? Then attach an air tubing to an air stone in the tank? Is that how they work? The canister then sits on the tank stand? I'm clueless.

If you have pics of yours can i see it?

I'm learning alot from you all,
Thank you,

My new grandson........Jordan Alexander
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post #2 of 5 Old 09-24-2012, 12:42 AM
The canister filter operates on a siphon principal and must be below the tank. It may work sitting on the stand, but is better down under. A motor driven impeller forces water back to the tank. Because it's a closed system, water flow (gallons per hour [GPH]) is determined by the size of the motor and speed of the impeller. There is no air line involved.

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Last edited by AbbeysDad; 09-24-2012 at 12:50 AM.
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post #3 of 5 Old 09-24-2012, 05:37 PM
I have a canister filter and its not very impressive but seems to work. My canister filter needs to be a certain distance below the surface of the water three or four feet.
For my visual comfort I added a small underground filter I just love the bubbles.
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post #4 of 5 Old 09-24-2012, 06:05 PM
everyone has their own preferences. I love canisters and hate bubbles unless they are absolutely necessary like for a fry tank or similar. Carbon filters I avoid as well. Look at youtube videos, there are tons of videos doing step-by-steps of how to setup and maintain a canister filter.

.... I'm probably drunk.

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post #5 of 5 Old 09-27-2012, 07:18 PM
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I have a canister on my three largest tanks, they (the filters) sit on the floor (= below the tank). There are many brands to select from, but whichever you decide on, get the filter rated for your tank size.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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