Filter behind a filter? - The Planted Tank Forum
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post #1 of 5 (permalink) Old 10-01-2013, 07:42 AM Thread Starter
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Join Date: Apr 2012
Location: canada
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Filter behind a filter?

So I'm planning a major overhaul on my 90 gallon. The plan is to put a curved hamburg matten filter in the left back corner, this will allow me to hide a bunch of equipment back there, and then I plan to cover the whole thing with a DIY fiberglass background. My question is, once that is all installed, would I be able to run another sponge filter in the space behind the hamburg filter? I have read that only the first few cm actually do the bio filtration on the hamburg model, but if there is nitrate in the water column wouldn't a second filter work still? Thanks.
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post #2 of 5 (permalink) Old 10-01-2013, 08:43 AM
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i think it would add extra bio-filtration
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post #3 of 5 (permalink) Old 10-01-2013, 01:55 PM
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I think it will be extra filtration too. But my opinion is, you must give the outflow pipe of "behind filter" to inside the tank, not inside the "behind area"

Sorry for my broken English but i hope you understand

Turkish boy from Hong Kong...
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post #4 of 5 (permalink) Old 10-01-2013, 03:00 PM
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I agree, throw the sponge filter in and work out an elbow to direct water back into the tank for maximum circulation

Tanks in progress: 14 'Iwagumi' (Cherries, bamboos, otos), 5.5 Desk 'Riparium' (Betta, Cherries)

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post #5 of 5 (permalink) Old 10-01-2013, 06:01 PM Thread Starter
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yea that is kind of the plan, i was planning on having a pump behind the filter running into the main tank part creating the pressure difference. i'll be sure to create a journal of the project once i actually get started
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diy, filter, hamburg

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