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Old 01-02-2011, 07:26 PM   #11
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The simplest way to solve this problem is just turn the filter off when you are sleeping. Unless the tank is overstocked with fish, a few hours without a filter will not harm the fish or stagnate the water. The idea that filters must run 24/7 is a myth.
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Old 01-02-2011, 07:35 PM   #12
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The simplest way to solve this problem is just turn the filter off when you are sleeping. Unless the tank is overstocked with fish, a few hours without a filter will not harm the fish or stagnate the water. The idea that filters must run 24/7 is a myth.
By all means cite some form of research for this statement. Turning filters off routinely also adds wear. They are designed to run continuosly.
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Old 01-02-2011, 08:48 PM   #13
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i also dont want to turn it off because it provides surface agitation for oxygen exchange
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Old 01-02-2011, 10:54 PM   #14
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A+ for the foam. I have often found you can knock out small noises in my aquaclears that way. If that doesn't work, sometimes just playing with the intake tube where it leads to the impeller works wonders.

I'm embarrassed to admit it, but we have seven aquariums in the bedroom, and I hate watery noises. It is possible to keep silence and aquariums at once
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Old 01-03-2011, 03:39 AM   #15
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A+ for the foam. I have often found you can knock out small noises in my aquaclears that way. If that doesn't work, sometimes just playing with the intake tube where it leads to the impeller works wonders.

I'm embarrassed to admit it, but we have seven aquariums in the bedroom, and I hate watery noises. It is possible to keep silence and aquariums at once
[moderator edit]
You have seven aquariums in the bedroom?

Why??
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Old 01-03-2011, 04:18 PM   #16
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My research is my own experience. Several times I have had to turn off my filter for a day or two and nothing happened. Aquariums that turn cloudy when the filter is turned off usually have two factors to consider: 1) too many fish for the size of the tank and 2) too much food for the fish. Giving fish too much food is the most common mistake aquarists make, and the main reason for water turning foul.

If an aquarium is properly stocked and cared for, a few hours without a filter will not do the plants or fish any harm.
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Old 01-03-2011, 04:50 PM   #17
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I agree that a few hours unfiltered will do no harm to an established aquarium. Recurrent long periods off however absolutely will and IMO it's bad advice to give to anyone.
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Old 01-03-2011, 05:11 PM   #18
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If a filter is off for 7 or 8 hours and then runs for the remaining 16 that should be sufficient filtration for an aquarium that is not overstocked or overfed. Several times I have had to turn my Ehiem filter off for the weekend and nothing happened - but I have a large tank with not too many fish. There are many variables here, including size of tank, number of fish, size of filter, etc. so the aquarist will have to experiment and find out.
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Old 01-03-2011, 09:18 PM   #19
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Absolutely the stocking and details matter, BUT disolved oxygen matters and turning off your filters is the worst thing you can do for the O2 content. If your fish survived, cool but if you did a bit more research you might not be so ready to place your fish at risk or to offer that piece of advice. Just sayin....
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Old 01-04-2011, 04:51 PM   #20
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The amount of dissolved oxygen in a tank is determined by the total air surface, not the filter. The filter merely moves the water around and eliminates small bits of debris. Also, the bacteria in the filter actually consume oxygen, not add it. By circulating the water, air stones will slightly increase the oxygen content, but they are not necessary to maintain fish health.

A correctly-stocked tank allows ten square inches of air surface for every inch of fish. A tank 30L x 20w would have an air surface of 600 square inches, which means it could support about 30 two-inch fish, no more.

As previously stated, the most common mistake of aquarists is putting too many fish in a tank, which then requires excessive filtration just to support the overpopulated aquarium.
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