If Your Betta Is Too Fat, What Should You Do?

How to determine if your betta fish is too fat

Body condition has a significant impact on general health and happiness in all dogs. The guideline also applies to fish. Obesity in pet fish can be a severe problem, and while their joints will be alright, inside fat obstructing various organs can be dangerous to their health. But how can you know whether your betta is overweight or underweight?

Why Do Bettas Get Fat?

Bettas, like any pets, rely on people for their daily nutrition. On how much, how frequently, and what food to feed your betta, there is a lot of contradicting advice on the internet. We've sifted through the rumors to bring you the truth about betta diet from a trained aquatic veterinarian with more than 8 years of expertise in pet fish health and wellness.

Bettas gain weight when they consume too many calories and do not expend enough of them when swimming. They can also gain weight by eating enough calories, but too many of those calories come from fat and not enough from protein. Protein is the most important component of a fish's diet, and ensuring that it contains all of the required amino acids is crucial to their health.

Too many snacks or high-protein or high-fat foods with an unbalanced dietary profile can also lead to betta obesity. Bettas in captivity have a drastically different lifestyle and are more sedentary than wild fish, despite the fact that they eat more items in the wild.

Bettas can also gain weight if their metabolism is slowed by the cold. Bettas are tropical fish that demand water temperatures of 78-82 degrees Fahrenheit (25-28C). Your fish will not be able to digest their food correctly if the water is too chilly. Because your fish will not have the energy to swim around, this might also induce lethargy.

How to Quantify Body Condition in Bettas

How can I know if my betta is overweight? It all boils down to body condition scoring, which is similar to identifying whether your cat or dog is overweight or underweight, but with a few distinctions. A dorsoventral view, or gazing down at the top of your fish, should be used to establish overall body condition in fish.

Examine the intersection of your betta's body and head. The girth of the head and shoulders should be the same. Internal organs of your fish are located in the coelomic cavity, right behind the head, and finish around half to two-thirds of the way down the body toward the tail. A healthy betta should have a torpedo form with a steady taper from head to tail, and if your betta's belly protrudes beyond the girth of his head, he is overweight. Your betta is too slim if his body grows much thinner immediately below his head.



Start with some basic feeding modifications once you've assessed your betta's bodily condition or received a diagnosis from an aquatic veterinarian. Because your betta is a tropical fish in a warm tank, you should feed it twice a day. Feed a betta food that states on the label that the contents include 35-42 percent protein.

High protein treats, such as bloodworms or brine shrimp, should only be fed 1-2 times per week.

Bettas who are overfed and/or kept in unsuitable conditions are vulnerable to impactions. This is a severe health problem with few therapeutic choices. If your fish stops passing excrement or develops dropsy, also known as kidney disease, see your aquatic veterinarian right once. To maintain your betta in top shape, keep an eye on the water quality.

How to Prevent Fat Bettas

The easiest way to avoid this is to educate yourself on appropriate betta husbandry and food before purchasing one. Take some time to research nutritional profiles on fish food packaging and make the best option for your fish rather than buying whatever is cheapest on the pet store shelf.

Replace your betta's food on a regular basis. It's nearly hard for a single fish to consume a whole container of betta food in a reasonable amount of time. Your fish's meal has lost most of its water-soluble vitamin content, including vitamin C, after 6 months. For optimal health, replace your fish's diet every six months.

Measure how much food your fish can consume in 3-5 minutes twice a day and only feed it that amount. The amount can be modified based on the above-mentioned bodily state. Make certain you're not overeating. Fish that are overweight have a lower lifespan.

What If My Betta is Too Skinny?

Start by boosting your fish's diet if they're too slim. If your fish is having trouble swimming, serve smaller, more frequent meals at first. Feed sinking pellets to avoid your fish having to expend extra energy pursuing his meal.

Be sure your diet is at the appropriate nutritional levels (35-42% protein and <10% fat) and was opened within the last 6 months for optimal vitamin content.

If your fish isn't gaining weight despite a good diet, you should speak with your aquatic veterinarian. In circumstances of insufficient nutrition, illnesses such as a are more likely to occur.


"James, Raja, and Kunchitham Sampath. "Effect of animal and plant protein diets on growth and fecundity in ornamental fish, Betta splendens (Regan)." (2003)." ;