what size sponge filter for 72 gal

  1. redlessi Well Known Member Member

    I have been looking to get a sponge filter for my 72 gal to run in addition to my other filter, I always look on ebay first due to pricing. How do you know what size to get:;dk, I have not seen the tank size listed for any of these sponge filters:;dk I was looking at the double sponge but cant tell. Any suggestions as to which one to get.
     
  2. navyscuba Well Known Member Member