ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

How To Make A Divided Tank For Betta Fish

Updated on March 11, 2010

There are numerous ways to make divided tanks for betta fish, and if you want to keep more than one betta in the same tank, then a tan divider isn't just a nice idea, it is a necessity.


Most glaziers will cut glass to size for you. You can then silicone the glass inside your tank. This is a good, permanent solution. If you aren't going to filter each part of the tank separately, make sure that you leave a small gap at the bottom of the glass. It should be a large enough gap that your fish cannot swim under it, but enough to allow the water to flow through it. If you are planning to put substrate like gravel or sand in the bottom of the tank, then you will have to either filter each part separately, or come up with another filtration method that works. Cutting up an undergravel filter and fitting it to each part with separate uptakes may work, or using several small sponge filters attached to an air pump with multiple outlets may also work.


Perspex is much the same as glass, but it can also be drilled. (I would recommend that you get an expert to do this as it cracks quite easily.) You can then silicone it in the tank for a nice, permanent solution with good water flow.

DIY Temporary Tank Dividers

If you want a less permanent, expensive, or complicated solution, you may be better off using some of the following materials.

  • Coroplast can also be used as a tank divider, and is easily perforated to allow water flow.
  • Plastic fly screen is another option that can be used and makes for a fairly sturdy tank divider.
  • Plastic perforated canvas also makes for a handy tank divider, and allows very good water flow.

With less permanent or or less solid tank dividers, you can use your imagination. Some people use report binders siliconed into the tank to hold plastic fly screen or canvas in place. Another option is a dollop of silicone holding the divider in place at the top of the tank and having the bottom of it held in place by the substrate.

  • Foam is also an option, if you can find a thick, inert and sturdy foam, though the thickness of foam may mean that you lose a lot of space to it in your tanks if they are not very large.

Pre Made Tank Dividers

It is also possible to purchase professionally made tank dividers. They tend to be more expensive than the options listed above and may not be available in some countries. Oddly enough, in New Zealand and Australia, it can be quite difficult to purchase tank dividers even for common tank sizes. Lord knows why as there is a definite market for them and they make life a great deal easier.

Still, as you can tell, there are a wide range of ways to make a divided tank depending on your personal tastes, preferences and budget. I would personally recommend either glass dividers with small foam sponge filters in each division, or the fly screen option, which allows you to run just one filter for the entire tank.

For more information a great resource can be found here.


    0 of 8192 characters used
    Post Comment

    • profile image

      Karen Holloway 

      3 months ago

      I also agree it’s sad that betas are put in such small containers. If you do the research on them they really do need and want a lot more space to swim, explore and be happy. Somewhere along the lines they were misrepresented about how much space they need and people still believe it. They can actually get depressed. I still hear wrong information being given out in pet stores by workers. It’s sad.

    • profile image


      16 months ago

      It is so sad that people think 10 litres is enough for betta. They need living space like any other animal, my betta lives alone in 40 litres and I think this is still bare minimum :(


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)