Can Glofish Eat Betta Pellets And Betta Food?

Glofish is genetically engineered fluorescent fish originating from tetra fish, rainbow sharks, barbs, and zebrafish. It is one of the most popular species in the aquarium hobby that comes in a lot of colors. People show interest in this species for the majority of reasons and we encounter a lot of questions regarding their qualities. When it comes to genetically engineered creatures, people often get confused and think that they require different and unfamiliar living conditions. The same goes for their diet and a lot of people don’t know how to feed them. However, we are here to debunk some of these myths and answer one of the most searched questions about Glofish – Can Glofish eat betta pellets and betta food?

Glofish can eat betta pellets and betta food. However, it should not last long because compared to bettas they have a slower digestive system not capable of resisting the protein foods intended for carnivorous bettas.

People often have misconceptions regarding Glofish as it is genetically engineered. We see a lot of questions about their appearance, diet, and living circumstances as more and more people are willing to raise them in the aquarium. We are here to talk mainly about their diet and give you a proper understanding of Glofish’s nutrition requirements.

Can A Glofish Eat Betta Fish Food?

Both of these species are very popular among fish enthusiasts and we can see rookies asking this question a lot of times. In order to get the appropriate answer, you should get familiar with the feeding behavior in both species.

As we have mentioned above, Glofish is able to consume betta pellets and betta food for a short period of time. This is because they are omnivorous fish and their digestive system is slow compared to carnivorous bettas.

Being carnivorous, bettas require food that includes high proteinaceous ingredients. On the other hand, Glofish’s digestive system is created to consume simple plants and protein and as a result, they are not able to withstand betta food for a long time.

However, if you are wishing to connect betta food with the Glofish regularly we would like to inform you that recently there has been an addition to the Glofish family. It is called a betta glofish and all the above-mentioned facts don’t apply to it. So, feel free to feed them as much betta food as you want.

If you are interested in learning more about your fish behavior, check out the links below:

What Kind Of Food Do Glofish Eat?

As for every species of fish, your Glofish requires a healthy and balanced diet with a wide range of nutrients. The general recommendation is to feed them with both live and frozen foods. We have noted already that being omnivorous fish they need simple protein and live foods can be a very good source for that.

Betta Pellet Food For Aquariums
Betta Pellet Food

On the other hand, frozen foods reduce the risk of spreading parasitic infections, and therefore, we suggest making it part of daily feeding. Along with the flake food, it should become a staple food for the Glofish.

We would like to list the most suitable foods for your Glofish –

  • Brine Shrimp
  • Flake Food
  • Bloodworms
  • Frozen Food
  • Pellets
  • Veggies
  • Meaty foods
  • Live Daphnia

These foods are considered to have every nutritional requirement of Glofish to keep it healthy.

Does Glofish Require Special Food?

There are plenty of special flakes in the markets consisting of different nutrients intended to strengthen the brightness of the fish. However, Glofish does not require any kind of special food.

These flakes are well-known for boosting the brightness of your fluorescent Glofish and they don’t contain any additional nutrients. The color of this fish comes from an inherited protein gene and it is passed from generation to generation.

The main objective of engineering Glofish was to control pollution levels and maintain fresh water in rivers and waterways.

Freeze Dried Bloodworm
Freeze Dried Bloodworm

Soon they have been noticed by the community of fish enthusiasts due to their delightful appearance. As a result, they have become one of the most popular tropical fishes and people are tank raising Glofish for more than 20 years.

Scientists are attracted to this species not only for its beauty but their ability to test different kinds of diseases including cancer. Due to them, scientists have developed several lifesaving drugs to help humans. So, we should be thankful for Glofish!

How Often Should You Feed Glofish?

If you are raising your Glofish in the aquarium alongside other individuals it can be rather difficult to feed them properly. Another fish might be a lot faster and steal the food from Glofish. Therefore, you need to make sure everyone gets a fair share of meals.

Our best suggestion would be to feed your Glofish twice a day and the required time to consume food should not exceed two minutes.

In order to simplify it for you, we have created a feeding scheme for the Glofish –

  • Brine Shrimp – Brine shrimp can be provided in both live and frozen forms once a week. They contain crucial vitamins and one brine shrimp should be enough per fish.
  • Pellets – As for the pellets, you should add them to the feeding 3 times a week and two pellets for each Glofish is sufficient. We recommend using mini pellets as they are the most convenient ones.
  • Flake Food – We have already mentioned that flake food should be used as a staple food and you should give them two times a day to your fish. Don’t forget that the amount of flake food should be consumed under 2 minutes.
  • Bloodworms – Feeding bloodworms to your Glofish two times a week is optimal despite that it’s extremely rich in protein. Overfeeding can cause some diseases. As for the usage, a small pinch of freeze-dried bloodworm is advised for Glofish and ¼ teaspoon of live bloodworms should be enough for other fish.
  • When it comes to vegetables, they should be provided 2-3 times a week and the amount must be sufficient to consume in 90 seconds.
glofish pallets
Glofish eats betta pallets

This guide is not necessarily required for every Glofish but we highly advocate it in order to create and maintain a healthy environment in your aquarium.

Can Your Glofish Die from Overfeeding?

Every newcomer to the aquarium hobby must remember the key principle that overfeeding any kind of fish is extremely dangerous that can induce several deadly diseases. Needless to say, this goes for your Glofish as well and it is not allowed to feed them more than they require.

Yes, overfeeding your Glofish can be deadly. Follow 2-min food consumption rule for your Glofish.

The beginners are lacking in experience and they make this mistake thinking that providing a lot of food is beneficial for the fish and they don’t know when to stop.

The Glofish itself will continue to eat as well cause it’s their natural instinct to eat all the available food around. This is typical behavior of every fish in the wild as they are not aware when the next food will be accessible.

You must take into consideration the above-mentioned facts regarding their feeding guide and not overfeed your Glofish as it can develop several illnesses and eventually end up dead.

How long Can Glofish Go Without Food?

This is one of the most searched questions on the internet as people are constantly asking how long can Glofish last without eating. There are circumstances when you need to go on a vacation or trip for several days and obviously you can’t take the tank with you.

Glofish is able to last a maximum of 2 weeks without any food. However, it does not mean that you should keep them completely hungry for this long.

If you are planning to go away for several days it will be good to have a friend or family member take care of the fish and provide food for them. Educate them about this topic and make sure your Glofish does not starve for a long period of time.

Why Are My Glofish Not Eating?

If you find your Glofish refusing to eat anything you provide it might be induced by several reasons.

First of all, Glofish might be under stress and anxiety when they are placed along with more aggressive tankmates that are much quicker to catch the food. You need to address this issue immediately and separate your Glofish from those individuals.

The second and more frightening reason might be the one which we have mentioned above – overfeeding. An overfed fish will definitely refuse to eat anymore and you must check water parameters to detect this problem. We want to repeat again that overfeeding might end with fatal results for your beautiful Glofish, so be very careful!


In this article, we have described one of the most fascinating and delightful fluorescent fish and answered the important question about their feeding behavior – Can Glofish eat betta pellets and betta food?

Our definition is that your Glofish is able to eat betta food but only for a short period of time as their slow digestive system is not able to withstand the food with a high number of proteins. In the rest of the article, we have explained what they eat in general and what are proper ways to feed them.

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