Bio wheel 150 not enough for 20 gal tank?

Discussion in 'Filters and Filtration' started by lfabb, Jun 27, 2016.

  1. lfabb

    lfabbValued MemberMember

    From a thread I've read here general rule seems like 8-10x gallon for filter gph. I've got a 20 gallon tank with a bio wheel 150. Should I upgrade to a 200?
     
  2. el337

    el337Fishlore LegendMember

    It's a tad underfiltered but if you understock and do large enough water changes, you should be ok. Personally, I would add another filter that generates 100 gph. It's never a bad idea to have two filters in case one fails or if you need one to move to a hospital or quarantine tank.
     
  3. tyguy7760

    tyguy7760Fishlore VIPMember

  4. OP
    OP
    lfabb

    lfabbValued MemberMember

    Online I found a bio wheel (so I can move my filters easier) 200 gph or 350. 350 overkill?
     
  5. tyguy7760

    tyguy7760Fishlore VIPMember

    350 is overkill
     




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