Transitioning from HOB filter to sponge - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 12 Old 03-07-2010, 09:45 AM
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Originally Posted by Promelas View Post
Well technically I'm not using a sponge filter.... I have a maxi jet 400 powerhead in my 29g with an attached prefilter sponge. From what I have read, an actual sponge will restrict the flow and increase the velocity in the jet. I'm going this route at the suggestion of a friend who has numerous planted tanks and only runs a powehead/prefilter setup. They are porous enough to grow bacteria, and you just need to rinse them once a week in treated water. It is 100% silent and so far my water has been nice and clear without any changes in parameters. I'll keep you posted if things change!
There's no need to use treated water to rinse filter media in established planted tanks. First, the amount of bacteria on the media (sponge, pad, whatever) is so minimal by comparison to what exists on every surface in the tank including all the plant leaves that destroying it is of no consequence. I have canisters, and when I clean them all the media goes into hot tap water in a bucket and back into the filter. I have never in 20 years done anything else.

Second, you do not want to "encourage" bacteria in planted tanks anyway, because this has been shown to be detrimental to plants. I detail this in Part 3 of the sticky series if you want more.

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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post #12 of 12 Old 03-07-2010, 10:59 AM Thread Starter
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OK cool thanks for that heads up. I had wondered about it. I have just been using tank water to rinse them out with, but this way would be much easier since I have two, so I can just switch them back and forth between rinses.
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