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Thread: Fish for a 2.2 gallon

  1. #1
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    Fish for a 2.2 gallon

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    Hi guys, i have a 2.2 gallon nano tank. I intend to rear a betta fish in it. But in order to do that what must I do? Can i put a sponge filter in or just an air stone? Or can i just heavily plant it and leave it in a sunny area? Thanks!

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  2. #2
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    Re: Fish for a 2.2 gallon

    I wouldn't heavily plant the tank and leave it in a sunny area as it may get really hot(depending how sunny). You should put a small sponge filter to keep the tank clean. Good luck

  3. #3
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    Re: Fish for a 2.2 gallon

    Or you can also use a small overhead filter if you find a sponge filter unsightly. If you like you can add some substrate and plants

  4. #4
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    Re: Fish for a 2.2 gallon

    The sponge filter, the smallest size, takes up 1/4 space of the tank. So Can I just plant plants?

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  5. #5
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    Re: Fish for a 2.2 gallon

    You can just plant plants if you are just keeping a betta. However you will have to do frequent water changes and monitor the water quality. I am not sure how much the plants will help so i recommend you use a hang-on filter. It does not take up much space and will help with water quality.

  6. #6
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    Re: Fish for a 2.2 gallon

    just plant plants and do water changes 1 or 2 a week, a filter is not required for a single betta.

  7. #7
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    Re: Fish for a 2.2 gallon

    A small sized sponge filter or a hob filter would be good for the beneficial bacteria to grow on. Your betta will enjoy cleaner water which is especially important given your tank’s already small size.

    You can consider easy plants like hornwort/anubias... try not to put in direct sunlight as the sun might heat up your small tank really fast given the small volume


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  8. #8
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    Re: Fish for a 2.2 gallon

    yes, but i recommend in that case you get a sponge filter, a HOB creates too much current.

  9. #9
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    Re: Fish for a 2.2 gallon

    Quote Originally Posted by zep_betta View Post
    yes, but i recommend in that case you get a sponge filter, a HOB creates too much current.
    That’s a good suggestion. Do consider adding a regulator valve if the air bubbles are coming too fast and strong as well.


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