2 filters in a 90litre tank??

madroosta

madroosta

small fry
Oct 2, 2006
123
0
16
48
united kingdom
i use two filters onmy 90litre tank, keeps the water nice n clear and works from either end of the tank so clears any debris quicker........is this wrong, extremely unnecessary or not a bad thing?
 
kraemerwa2003 said:
I don't think that it should be a big problem...as long as it cleans your tank...
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yeah it seems to be doing the job now pretty well for 6 weeks. fingers crossed!
 
over filtration is always better. it will give you better biological filtration also. but the thing is it depends on what filters your using. two 10 gallon filters on a 50 gallon wouldnt be better than one filter rated at 50 gallons.
 
I guess it depends on what size filters they are, as in not too small, it's not just "not bad", it's downright good! I have a cannister rated for a 100 gallon tank on my 55g.

Filter manufacturers are always a bit optimistic about what their product can handle...

You really can't have too much filtration.

This holds true till somebody comes up with something stupid like, "Can I use a swimming pool filter on my 10 gallon?"
 
CaptnDan said:
I guess it depends on what size filters they are, as in not too small, it's not just "not bad", it's downright good! I have a cannister rated for a 100 gallon tank on my 55g.

Filter manufacturers are always a bit optimistic about what their product can handle...

You really can't have too much filtration.

This holds true till somebody comes up with something stupid like, "Can I use a swimming pool filter on my 10 gallon?"
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lol. if the filter has more water in it than the tank, then there is a problem LOL

you should shhot for 7-10 times per hour for best filtration
 
ok

thanks for all your help pe3ople much appreciated!!
 
yup, some people prefer having two different kinds of filters (e.g. under gravel filter with a power hang-on-tank filter) because they do filter in slightly different ways. As jm said, I also shoot for about 10x tank volume circulated per hour because the filtration rates are calculated for the filter with no media in it. So add in the filter floss, bio rings, filter media bag, etc. and it is probably reduced to 5-7x tank volume per hour. For two separate filters, just add their capacity. So two filters rated at 250 litres per hour gives you 500 lph.
 
plah831 said:
yup, some people prefer having two different kinds of filters (e.g. under gravel filter with a power hang-on-tank filter) because they do filter in slightly different ways. As jm said, I also shoot for about 10x tank volume circulated per hour because the filtration rates are calculated for the filter with no media in it. So add in the filter floss, bio rings, filter media bag, etc. and it is probably reduced to 5-7x tank volume per hour. For two separate filters, just add their capacity. So two filters rated at 250 litres per hour gives you 500 lph.
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ONCE AGAIN THANKS FOR YOUR HELP.
 
madroosta said:
ONCE AGAIN THANKS FOR YOUR HELP.
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OK, did you mean to yell that? Not everyone has a chance to see every thread within 12 hours. I wanted to add a little more info, not just for you but for anyone who might read this.
 
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