Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Flow rates for tanks (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/flow-rates-tanks-3748/)

Fiji 02-28-2007 08:58 PM

Flow rates for tanks
 
hey there i would like to buy a understand / Caniter filter for both my 3 & 4 Ft Tanks. i have common goldfish in the tanks allong with some plecos/ bristlenose catty's, what are generally good flow rates should i go for for the two seperate tanks. i work with many types of pumps & have some understanding of the effect head height / pipe sizing on pump performance (especially with high flow low head height pumps.)

I ususally wiork on for fish turn over of the tank 1-2 times per hour. obviously the bigger canister filter the better/ cleaner my tank / less maintainance. but what would be a good base flow rates for either tank.

Cheers

magic_marty 02-28-2007 10:05 PM

Most of the pros recommend that your filter be able to turn your tank at least 5 times per hour..In my opinion the more the better, you can never over filter a tank from what i understand, unless its UV witch often relaxes the fishs natural immune system..

musho3210 02-28-2007 10:29 PM

no such thing as over-filtration, except over-powering, if you put a 200 gallon filter in a 10 gallon tank, you will see the water in a strong whirlpool current which fish wont be able to swim properly in.

jones57742 03-01-2007 12:03 PM

The typical published values are

10 to 12 times total volume turnover per hour for HOB and cannister filters and

4 to 6 times total volume turnover per hour for wet/dry filters.

TR

musho3210 03-01-2007 04:08 PM

5 times turn over for low stocked tanks,(if the filter is rated for a 20 gallon tank it means it has a 5 gallon turn over for a 20 gallon) 10 gallon turn over for normal stocked tanks. 15 times turnover for heavily stocked tanks.

those are very basic, with 15 times turnover the current will be very strong and not all fish likes it, and vise versa

Fiji 03-01-2007 09:30 PM

very interesting, just shows how much i knoow. .. cheers i'll be at the fish shop this arvy checking things out.

Cheers


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