under gravel fillter - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 12 Old 09-03-2006, 02:15 PM Thread Starter
under gravel fillter

My freind is going to set up a 30 gallor freshwater tank and he wants my help.He does not want a powerfilter because he wants to place the tank flush against the wall.He does not want a canister fillter because there to expensive.so i figured he should buy a undergravel fillter do you think this is a good fillter?
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post #2 of 12 Old 09-03-2006, 02:30 PM
undergravel fillter doesn't work that well what about puting it on the side?
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post #3 of 12 Old 09-03-2006, 04:13 PM Thread Starter
sound good
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post #4 of 12 Old 09-03-2006, 05:31 PM
Lupin's Avatar
UG filter may work but it will not remove the wastes out of the tank. The wastes are just accumulated inside the plates thus clogging is very common.
UG filter clogs easily if you use sand and cleaning it requires entire strip down of tank.
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post #5 of 12 Old 09-03-2006, 07:19 PM
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post #6 of 12 Old 09-04-2006, 10:51 AM
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reverse flow

Has anybody treid reverse flow with UGF using a canister filter? How does it work?
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post #7 of 12 Old 09-04-2006, 12:12 PM
IMO, UGF's don't work, especially if that's the only filter in the tank. It will suck all the crud under the gravel, and that's where it stays. It isn't removed from the tank. Just because you can't see it doesn't mean it's not there.

It would be extremely difficult to put it right up against the wall. There will be a tiny space between the wall and the tank which small objects would be able to fall through, and there's no moving the tank to get them back. So you might as well have a power filter. The tank will only need to be 4 or 5 inches away from the wall, and if you view it from the front you won't be able to tell anyways.
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post #8 of 12 Old 09-04-2006, 01:45 PM
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post #9 of 12 Old 01-06-2007, 02:11 PM
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I would put the HOB filter on the side of the tank. It will still fit well and should still filter effectively. If dead spots become an issue or low current, a small powerhead on the other side of the tank should help with that.
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post #10 of 12 Old 01-06-2007, 05:37 PM Thread Starter
wow this is a outdated subject
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