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How Long Can a Betta Fish Go Without Food/Eating?

May 22, 2018 By Johnny Salib 8 Comments

Hey Pet Parents & Pet Lovers,

It’s embarrassing to admit, but sometimes as pet parents, we go on vacations and don’t have a way to feed our fish, so one of the most frequent questions easily becomes: How long can my fish survive without being fed. Since I keep Bettas, I’m going to speak specifically on them.

Simple Answer

There are actually too many factors to give a specific answer and the simplest way to answer this is by saying… it depends on your individual fish. So let’s break it down a bit.

blub-swimming-betta-fish-red-tank

But first, an alternative to starving your fish…

Vacation Feeders (Slow Released Food)

If you’re asking this question because you’re going on vacation, you can actually buy slow release foods. (Some include: Zoo Med Betta Banquet Blocks and Penn Plax PBV1 7-Day Vacation Fish Feeder) These are really great to have around the house as some of them last 2-weeks and will easily keep your fish friend fed! It’s much better to be safe than sorry. No one wants to come home to a sick, or worse, dead fish! Now, slow release foods aren’t perfect, and there have been complaints that sometimes they release too much food (that will either overfeed your fish and create too much ammonia inside of the tank) and there have always been complaints that they may not release any food at all. Of course, this is caused by factory defects, which is unavoidable, unfortunately. I would recommend trying these feeders out a few days before you leave to make sure it’s releasing the proper amount of food for your fish. It’s also important to try slow feeders in advance, since your Betta may be picky about the types of food it eats… leading us to the next option….

Timed Feeders

Although a bit more expensive, these feeders can be filled with any pellets or freeze-dried food your Betta is used to. Just fill the compartments and it will slowly rotate feeding your Betta a couple times a day. Some of the top rated ones include Eheim Battery Operated Auto Fish Feeder and Fish Mate F14 Aquarium Fish Feeder.

Factors that change how much your fish needs to be fed

Water Temperature

Since our swimmers are cold-blooded, their metabolism correlates to the water temperature. Fish that are kept in warmer temperatures have a higher metabolism, so they must be fed more frequently, as fish kept in colder temperatures have to be fed less. So, since Bettas are tropical fish, it’s safe to assume that they can’t last very long without food (although skipping a few days is fine, especially if you are starving once a week for bladder health.)

Tank Size

If you have a larger tank, your Betta is getting much more exercise. If your tank is around 10 gallons, you may be able to get away with a couple days of not feeding your Betta, but you definitely want to make sure your Betta is getting the nutrition it needs to survive. Remember “surviving” and thriving are two very different things, and your Betta will live a longer and healthier life if given proper care.

How long does it take for a Betta to starve?

Bettas usually begin starving around 5 days. This is when the first signs of survival mode kick in and the Betta will begin using its reserve to stay alive. Wild Bettas are usually surrounded by food, and so they usually don’t have to starve or wait to eat. With this in mind, it would actually benefit your Betta to eat a couple times a day, similar to feeding other animals.

 

 

Filed Under: Betta Fish Care, Fishes, Pet Care

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About Johnny Salib

Johnny is a twenty-something-year-old pet blogger and the proud pet parent of two cats and a chinchilla. He also writes music directly aimed to help keep cats chilled out and stress free.

Reader Interactions

Comments

  1. Meezer's Mews & Terrieristical Woofs says

    June 4, 2018 at 1:28 pm

    I used to use those slow release ‘shells’ for my goldfish, when I would go away. But it was not for more than a few days each time.

    Reply
    • Johnny Salib says

      June 4, 2018 at 3:05 pm

      Did you like the release shells? Or did you find that they were a bit problematic? I’m always curious to hear how they do with different owners.

      Reply
  2. Ellen Pilch says

    May 22, 2018 at 7:22 pm

    Slow release food is a great idea.

    Reply
    • Johnny Salib says

      May 23, 2018 at 6:41 am

      It’s definitely helpful!

      Reply
  3. mommakatandherbearcat says

    May 22, 2018 at 5:39 pm

    I love that you answer these questions that anyone with a fish needs to know – but never thinks to ask!

    Reply
    • Johnny Salib says

      May 22, 2018 at 7:13 pm

      Glad you enjoy! It’s been fun answering them šŸ™‚

      Reply
  4. Eastside Cats says

    May 22, 2018 at 10:24 am

    Oh, how well I remember the slow-release food, that I used for my goldfish when I was a kid and the family went off on a week’s vacation. However, my older brother, who stayed home to work, decided that he’d feed the fish too…even though he wasn’t asked to. Fat, fat fish when I got home! Wished I had a photo of them, and the snails that joined them, hiding on seaweed.

    Reply
    • Johnny Salib says

      May 22, 2018 at 10:27 am

      Oh my gosh! That’s hilarious!! I wonder how hard it is to make your fish lose weight…

      Reply

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