Question on filters

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Mercury64

Aquarium Advice Regular
Joined
Sep 24, 2004
Messages
96
Location
Coral springs
I was wondering what is the rule of thumb when it comes to filter size
I have a 30 gal tank, trying to figure out if an external whisper 170 is big enough for a 30 gal tank
 
Most people here use LR and LS for filtration with 10x gph water flow. 1 to 2 lb of LR per gal should be all you need (plus a skimmer)
 
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