Does A Small 2.5 Gallon Or Below Need A Filter?

Discussion in 'Freshwater Beginners' started by Vortexed, Apr 21, 2017.

  1. Vortexed

    VortexedValued MemberMember

    The title asks the question. I want to get a betta, but Im running out of plugs and extension coords for heaters and filters.
     
  2. Culprit

    CulpritFishlore VIPMember

  3. BottomDweller

    BottomDwellerFishlore VIPMember

    Yes of course. A smaller tank needs a filter even more than a larger tank needs a filter. A betta needs 5 gallons+ in my opinion though.
     




  4. OP
    OP
    Vortexed

    VortexedValued MemberMember

    It doesnt need 5 gallons minimum.
     




  5. Nanologist

    NanologistWell Known MemberMember

    It's their opinion, and many other Betta enthusiasts, though.

    I have mine in a 3.5g filtered and will be eventually upgrading to a 5-10g, not only because it is easier to maintain but my male Betta is so active he seems cramped and would definitely flourish and benefit from a 5g+

    Edit - Also 2.5g is the absolute minimum most on this forum would recommend but it's not ideal by any means.
     
  6. clk89

    clk89Fishlore VIPMember

    Any fish will need a filter, and a betta will need a heater too. You can get small sponge filters for that size.
     
  7. Culprit

    CulpritFishlore VIPMember

    So what would you use for a 2 gallon shrimp tank? It would be heavily planted. Are there really filters that small
     
  8. ashenwelt

    ashenweltWell Known MemberMember

    Yes unless a walstad using plants as a filter.
     
  9. Culprit

    CulpritFishlore VIPMember

    Thats what I was thinking about.
     
  10. ashenwelt

    ashenweltWell Known MemberMember

    Look up walstad shrimp bowl and there is a step by step she posted.
     
  11. ChaoryValued MemberMember

  12. clk89

    clk89Fishlore VIPMember

    A sponge filter would be perfect for it. I personally don't advise something like walstad to beginners, and it is a lot more complex then just making the tank heavily planted.
     
  13. ashenwelt

    ashenweltWell Known MemberMember

    My opinion is its good if they go exactly by her step by step for her shrimp bowls. Beyond that... simple is the last thing to say about it. :)
     
  14. OnTheFlyWell Known MemberMember

    A simple sponge filter is a good option for a nano tank. Inexpensive and trouble free. Still needs to cycle like any other filter to do any good.
     
  15. Culprit

    CulpritFishlore VIPMember

    Lol I'm not exactly a beginner ;)
     
  16. clk89

    clk89Fishlore VIPMember

    Ah well sorry then I just say that as a general warning, not really assuming you are or are not a beginner. I personally still have no ideal where I am at with fish keeping.
     
  17. DuaneV

    DuaneVWell Known MemberMember

    Yup. Smaller tanks need filters even more so than larger tanks because there is so little water that the slightest changes have a BIG impact on the water quality. In a 2.5g, go with a single sided sponge filter, a small heater, some almond leaves and a few banana plants.
     
  18. Aya IkeuchiNew MemberMember

    Yes you need a filter coz fish poo and fish food will foul the water fastly in a 2.5. I used to house my betta in my 20g but when i got my pristellas i moved my betta to my unfiltered 5G and he started getting fin rot. Now my Betta has a corner box filter and is healing. but im still a beginner just my thoughts :)
     
  19. AllieSten

    AllieStenFishlore VIPMember

    Get a power strip. It will give you 6-10 extra outlets to use. I have one for every tank actually, so my outlets have room for phone chargers too lol (big family, lots of phones haha)
     
  20. guilzNew MemberMember

    it depends on you. but you can only use gravel vacuum to suck their waste every 3-7days. or if you think u needed. btw i always change 20% of water in my 2.5g tank everyday
     




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