How Many Otto Cats In Species Only 20 Gallon Long?

Discussion in 'Aquarium Stocking Questions' started by keeperofmanyponds, Apr 16, 2018.

  1. keeperofmanypondsValued MemberMember

    I have a 20 long with 6 ottos and ever since moving the tiger barbs out, these fish have become very happy and I want to add more, what are your suggestions?

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  2. BuganjimoWell Known MemberMember

    I’m not... amazing... at stocking, but I think 12 is a good number, stick all the info in aqua advisor and see about what stocking percentage you’re at. Aqua advisor isn’t 100% accurate but can be useful sometimes, you want to aim for 70-80% stocking to leave room for human error, plus, otos are pretty sensitive. But I think 12 is a good number, any second opinion?

  3. Thunder_o_bFishlore VIPMember

    Just be sure they have enough to eat. They are close to being pure vegetarians. They need algae wafers and fresh veggies.
  4. keeperofmanypondsValued MemberMember

    I have been feeding well with algae from my other tanks. I have an algae culture going in a seperate small tank but when the culture is done I will add more ottos. Do you think 12 is the ideal number?
  5. Thunder_o_bFishlore VIPMember

    Ottos like a good group, if well fed and in pristine water 12 would be fine.
  6. Puck44Valued MemberMember

    What other species will you have will them?
  7. 75g Discus TankFishlore VIPMember

    12+ is an ideal number.

    What filter do you have?
  8. keeperofmanypondsValued MemberMember

    I have no idea. I might do one betta fish but not sure. I want to do a single species otto tank for a while.

    Marineland penguin 30 gal capacity and aqua neat powerhead bubble filter 20 gallon capacity. So two filters combined 50 gallon capacity.
    Last edited by a moderator: Apr 16, 2018
  9. 75g Discus TankFishlore VIPMember

    You could go up to 18.
  10. keeperofmanypondsValued MemberMember

    I have decided to move one of my current betta fish into the 20 gallon. He is so peaceful and hasn't hurt any of the shrimp he is with. I may stick with 12 ottos to keep the bioload down. I really love these fish they seem so easy to keep.

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