Credits:Roberto Kamalov(Creative Commons License)
There are 5 different types of Glofish in all, from tiny tetras that are good for small aquariums, to rainbow sharks that require 50 gallons each. So how big is Glofish? What size pool do you need?
I will answer all your questions and then some.
How big is the Glofish?
Glofish can grow from 2 to 6 inches in length, depending on the species. Glofish tetras, danios, and fighting fish are small fish that only grow to 2 to 2.5 inches in length. Glofish barbs grow to be about 3 inches long and Glofish sharks can grow up to 6 inches!
How big are puffer tetras?
Globe tetras are bred by genetically modifying the beautiful black rock tetras. Thus, they grow to the same size as their original cousins, which is 2-3 inches.
How big is the Glofish Danios?
Glofish Danios were the first Glofish ever created. These fish grow to the size of their parent species, the zebrafish, at around 2 inches. Although these fish are small, they need a large tank due to their hyperactivity.
How big are Glofish bettas?
Glofish are like normal bettas, except for their bright disposition. Therefore, these fish grow to between 2.25 and 2.5 inches in length. They are extremely hardy fish, ideal for both beginners and experienced aquarists.
How long are glofish spines?
Puffer Barbs are the genetically engineered variants of the popular Tiger Barbs. In the aquarium, they can grow to about 3 inches in length. Although they don't grow very tall, their semi-aggressive nature means they need a lot of room to swim.
How big are balloon sharks?
Bullet sharks are genetically engineered rainbow sharks. So in captivity they grow to be about 6 inches long. Due to their size and rabid nature, these fish need large tanks.
Now that the main query is out of the way, let's answer some other important questions.
How many Glofish in a 20 gallon tank? Honest answers!
How big are puffer tetras? Create them quickly!
How are Glofish eggs? photos and videos!
How many Glofish in a 3 gallon tank? Zero!
What is the recommended minimum tank size for Glofish?
|puffer fish species||Minimum tank size|
|Tetra Baiacu||15 gallons|
|Glofish Danios||10 gallons|
|Glofish Bettas||5 gallons|
|puffer barbs||20 gallons|
What is the recommended minimum tank size for glofish tetras?
The recommended minimum tank size for glofish tetras is 15 gallons. These fish are small and can technically be kept in aquariums smaller than 15 gallons.
The problem, however, is that they are shoals and the ideal is to keep them in groups of 6 or more individuals. And a 15 gallon tank would be the absolute minimum for that.
Keeping them in a small tank will only add to the stress. As a result, they attack each other and even grab each other's fins. And that's not pretty to look at.
What is the recommended minimum tank size for Glofish Danios?
The recommended minimum tank size for Glofish is 10 gallons. However, these fish are very active and have been known to run through the tank like lightning.
As such, I would recommend purchasing a tank that is 20 gallons long or even larger.
Like neon tetras, glofish danios are schooling fish. You should keep at least 5-6 of them together to keep them comfortable.
From what I've read on a forum, these fish prefer odd groups.
So 11-13 would be perfect in a 20 gallon tank.
What is the recommended minimum tank size for Glofish Bettas?
Opinions on the ideal tank size for fighting fish are divided. Some say 2.5 gallons would be enough, while others claim they need at least 5 gallons each to live happily.
I agree with the second school of thought here. A Betta should be given at least 5 gallons each for him to lead a comfortable life.
Also, adding more than one male in small tanks without adequate space and hiding places is a very bad idea. You will literally fight to the death.
So if you plan on keeping small aquariums I would suggest keeping females only. Give up those majestic fins.
What is the recommended minimum tank size for Glofish Barbs?
Don't go by the size of a puffer splinter. They have a lot of pep for fish that rarely grow larger than 3 inches. So the recommended minimum tank size for these fish is 20 gallons.
However, many experienced aquarists recommend keeping them in a tank that has a capacity of at least 30 gallons. There are multiple reasons for this.
Firstly, glofish barbels are very active swimmers that need a lot of open space for swimming. Second, at the end of the day, these fish are tiger barbs. Therefore, they become aggressive and resort to violence when there is not enough territory.
And finally, tiger barbs are educating fish. They must be kept in a group of at least 5-6. And as you can imagine, a 5 or 10 gallon tank just can't hold that many spikes.
What is the recommended minimum tank size for Glofish sharks?
Glofish sharks are just as active and aggressive as their "all-natural" cousins. So the minimum recommended tank size to keep just one Glofish Shark is 50 gallons. Yes, you read that right!
And if you plan on keeping more than one of these fish, be prepared for a 125-gallon or larger tank.
In small aquariums, these active fish are quickly stressed and become quite aggressive.
Now let's see what is the average lifespan of these fish.
How long does Glofish live?
Here is a table showing the average lifespan of different Glofish species:
|species||hope of life|
|Tetra Baiacu||3-5 years|
|Glofish Danios||4-5 years|
|Glofish Bettas||3-5 years|
|puffer barbs||5-7 years|
Now let's quickly review the necessary temperature and pH values.
What is the best temperature for Glofish?
The best temperature for different Glofish species looks like this:
What is the best pH for Glofish?
The ideal pH range for various species of Glofish is as follows:
What are the colors of the glofish?
Glofish currently comes in six stunning colors:
- galactic purple
- electric green
- cosmic blue
- Red Star
- Mondaufgang Rosa
Is Glofish dye injected?
No, Glofish is not dye-injected. The beautiful fluorescent colors they use are created by an inherited fluorescent protein gene that is passed down from generation to generation.
And these fluorescent protein genes were derived from natural genes found in marine life like jellyfish.
Are Glofish difficult to keep alive?
No, Glofish are not difficult to keep alive because the scientists who bred them deliberately chose the hardiest, beginner-friendly species like bettas and barbs to create the Glofish.
As long as you provide a clean, stress-free environment and feed them healthy foods at the correct interval, your Glofish will live as long as their unmodified cousins.
That said, Glofish can sometimes die on arrival due to post-purchase travel stress and fatigue. Therefore, always look at the fish before buying it.
Choose puffers that are active and good swimmers, have a round belly, and show no signs of abnormalities such as white spots, broken fins, or odd swimming patterns.
Final words: How big is the Glofish?
There are five different species of Glofish. While some only grow 2 inches long, others grow up to 6 inches long and require 50 gallons each.
Glofish danios, bettas and tetras are the smallest species - they only grow to about 2 to 2.5 inches in length. Glofish barbs are slightly larger, growing to about 3 inches in length. Finally, Glofish sharks are the largest of them all, reaching up to 6 inches in length!
How many Glofish in a 10 gallon tank? Zero?
How long does Glofish live? What species of Glofish live the longest?
How long can Glofish go without eating? Which species can walk the longest?
What size tank do Glo fish need? ›
Housing Them: They should have a tank of at least 5 gallons but 10 gallons or more is best. The tank should have a good power filter and heater. In tanks of 10 gallon or more we recommend an outside power with an air pump and a biological sponge filter. They like to swim in the middle water layers.How many GloFish can you put in a 10 gallon? ›
We recommend keeping just one Tetra per gallon of tank space.How many GloFish can you put in a 20 gallon tank? ›
You can raise Glofish danios in a 20-gallon tank, and experts recommend keeping 10-12 at most. These creatures are as big as the original species, up to 2 inches. Due to their small size, many fish keepers think placing many in a small aquarium would be okay, but it's not.Is 5 gallons enough for GloFish? ›
You can fit six to ten GloFish in a 5-gallon tank. This is because these fish function better as a school, rather than as individuals. While you can put only two fish in a 5-gallon, six to ten GloFish is better.Do GloFish need light at night? ›
Should I turn off my GloFish light? Yes, do not leave the blue light on for 24 hours a day because the fish need to sleep in the dark at night and algae can grow if you turn on the aquarium light more than 12 hours a day.How many gallons do 3 GloFish need? ›
For example, even three common goldfish would need a tank size of 54 gallons (30 gallons + 12 gallons for the second fish + another 12 gallons for the third fish). Most people won't have a goldfish tank that size. If you want to keep lots of fish, we recommend choosing a smaller fish than goldfish!Why does my GloFish keep dying in the tank? ›
There are many reasons why fish in your tank keep dying. A few reasons include stress, incorrect tank setup, overfeeding, diseases, and much more. To a beginner, it could look like your fish died for no reason whatsoever.How many times do you feed GloFish? ›
Experts suggest feeding your fish relatively small amounts of food once or twice a day. If they eat all of the food within a few minutes, it is okay to add a bit more, as long as they eat all (or at least most) of it within a short period of time.How long do GloFish live? ›
The average Glofish lifespan is 3-8 years; however, this varies based on the species and care they receive.What do GloFish need in their tank? ›
- Set up your Tetra GloFish® Aquarium. Kit contains aquarium, LED lighting, filter and filter cartridge. ...
- Add GloFish® brand décor and accessories. such as fluorescent gravel and plants, and ornaments with glowing accents.
- Add and treat water. ...
- Add GloFish®.
Are GloFish easy to take care of? ›
They are a peaceful fish that's great in a community tank, but they might nip the fins of slow-moving tank mates like Bettas. You should keep them in a school of at least five, but larger numbers are always better. They're very easy to care for and will readily accept flake, pelleted or frozen foods.Can GloFish live in a 10 gallon tank? ›
GloFish Danios can reach a maximum size of 2.5 inches. Thus three to five of them should fit inside a 10-gallon fish tank. Even by the inch per gallon guideline, five may be stretching it, which isn't ideal, to begin with, even if they are low-maintenance.How many GloFish Danio can I put in a 5 gallon tank? ›
Because they are relatively small fish, you can safely add two Danios per gallon of tank space.What temperature do GloFish need? ›
The GloFish® Submersible Heater is designed to keep your aquatic fish comfortable, with an electronic thermostat that automatically maintains a consistent water temperature of 78 degrees and prevents overheating, extending heater life.Can GloFish go a day without food? ›
How long can GloFish Tetra go without food? Most healthy aquarium fish can go three days to a week without eating. However, it usually isn't recommended to go more a day or two without feeding unless completely necessary.Do GloFish fight each other? ›
GloFish Sharks can be semi-aggressive, so we advise keeping only one shark per aquarium. They can, however be housed along with other GloFish Tetras, Danios, and Barbs. It should also be noted that our GloFish Barbs can potentially become aggressive if they are not kept in groups of five or more.How often should I change my GloFish tank? ›
Twice a month if you have a lot of fish, or if you have fish that produce more waste, such as goldfish or cichlids. Clean your filter of any sludge, particularly if it has an impeller, every other month. Do a 25% water change once a month.How many goldfish can I put in a 5 gallon tank? ›
The general rule of thumb for stocking any fish tank is one inch of fish per one gallon of water in the aquarium. You can keep about 2-4 fish in a tank this size as long as each fish is not larger than 1 inch.What size tank does 1 goldfish need? ›
A good rule of thumb is to choose a tank of at least 10 gallons for one goldfish and 20 gallons for two goldfish. If you plan on keeping moor or fantail goldfish, you will need an even larger tank.How do you keep a GloFish tank clean? ›
To keep your GloFish tank clean, you'll need to perform some routine maintenance tasks. Check your tank temperature daily and make sure it is in the range of 72°F to 80°F. You should also check the water level on a weekly basis and replace water lost to evaporation once a week.
Do GloFish need a bubbler? ›
Yes, Glofish need a bubbler in their aquarium because they create consistent water movement, imitating ocean currents. Similarly, a bubbler in the Glofish aquarium improves the ecosystem by increasing oxygen content. Thus, making your Glofish remain vibrant and healthy!Why is my GloFish shaking? ›
Shimmying is a symptom rather than a single disease, and an indication that a fish no longer has proper control of its nerves and muscles. It occurs when fish are under severe stress, most often because of environmental problems.What is the best food for GloFish? ›
GloFish eat a diet of fish flakes, pellets, and frozen or freeze-dried foods formulated for ornamental pets. They are an omnivorous species that do best on a diet specially formulated for them. GloFish are a species of fluorescent, transgenic zebrafish. GloFish benefit from foods high in carotenoids and beta carotene.Do GloFish need a heater? ›
Yes, glofish need a heater, because all the Glofish species are derivatives of tropical species. That means they're used to warm waters and require heaters in captivity. The temperature for all the combined species falls within the range of 61 to 81 degrees Fahrenheit.How often do GloFish have babies? ›
The male releases gonadal pheromones, causing ovulation to occur in the female. Female GloFish have the capability to lay eggs every two to three days. A single clutch can contain up to several hundred eggs.Do GloFish glow in the dark? ›
These genes produce proteins that fluoresce which give Glofish their “Glo!” Glofish absorb light in a specific wavelength then re-emit light, giving them their glowing appearance. Their color can be enhanced by blue LED, actinic, and black lights.Will my GloFish have babies? ›
Glofish reproduce like their original species. The female releases pheromones to initiate courting while the male releases a gonadal hormone to cause ovulation in females. The female Glofish can lay every two to three days until it has produced a single clutch of several hundred eggs.Do GloFish keep their color? ›
Each new GloFish inherits its unique color directly from its parents, maintains the color throughout its life and passes the color along to its offspring.What type of water do GloFish go in? ›
Fill a clean bucket (not washed with soap or detergents) with lukewarm tap water and treat it by adding GloFish® Water Conditioner and GloFish® Water Balance. GloFish® Water Conditioner removes chemicals in tap water such as chlorine and chloramines, which are harmful to your fish.Can GloFish live in tap water? ›
GloFish Water Conditioner is safe and effective for all tropical fish. Makes tap water safe for GloFish fluorescent fish.
How long can GloFish live in a bag? ›
On average, fish can survive for 6-9 hours in a sealed plastic bag as long as other conditions are met. It is strongly encouraged to only keep fish in a bag for a few hours at most, though.Do GloFish glow without light? ›
That's why although your Glofish appear colorful and bright in white light, they don't actually sparkle unless they're illuminated with UV light. In other words, Glofish absorbs UV light and re-emit it, tricking the eyes that they glow.What is the smallest GloFish? ›
Depending on the species of glofish, once the tank is established, he can have 1 or 2. We would recommend the danio version as the smallest, and hardiest.What are the disadvantages of GloFish? ›
- the fish tell scientists when the water is polluted.
- safe for the environment.
- easy to breed.
Cichlid. Originally from the brackish lakes of Africa and Central and South America, cichlids are a bold and interesting species. They come in many bright and colorful varieties, and can grow anywhere from just a few inches to over three feet long.What bottom feeders can live with GloFish? ›
The 15 best glofish tetra tank mates include the following:
- Zebra danio.
- Rosy tetra.
- Hoplo catfish.
- Hog-nosed catfish.
- Cherry shrimp.
- Bamboo shrimp.
- Harlequin Rasbora.
- Bristlenose pleco.
But the average goldfish can survive for up to one hour outside its tank. Other types of pet fish, like betta fish, can survive up to two hours outside of water.Are GloFish male or female? ›
Look at each tetra's belly. Male glowlights' stomach areas are less rounded than females of this subspecies, because the girls' bellies become bloated from carrying eggs when they are fully grown. Boy tetras usually have a much sleeker look than the girls.Can GloFish live in a 3 gallon tank? ›
A 3 gallon tank can accommodate only one danio or tetra glofish. You also have to ensure proper filtration for your fish's safety. You need a minimum of a 10-gallon aquarium to keep danios and tetras in adequate conditions. Rainbow sharks and tiger barbs need at least 20 gallons to thrive.Can a GloFish shark live in a 5 gallon tank? ›
Because of their large size, GloFish Sharks should only be placed in aquariums 20 gallons or larger. While only one Shark is recommended for a 20-gallon aquarium, multiple Sharks can be kept in aquariums larger than 40 gallons as long as there is ample bottom space for each to establish territory.
What size tank do Glo sharks need? ›
GloFish Sharks are the largest species in the GloFish family and recommended to keep them in a 20 Gallon aquarium or larger. Sharks like to have places to hide in the aquarium and are a great addition because they clean up leftover food.How many fish can you put in a 13 gallon tank? ›
One of the most important factors that comes into keeping fish in tanks or ponds is how many fish you can get away with keeping in one system. The tried and true rule of how many fish per gallon is: 1″ of fish per gallon of water.How long is a GloFish lifespan? ›
The average Glofish lifespan is 3-8 years; however, this varies based on the species and care they receive.How often do you feed 3 GloFish? ›
Experts suggest feeding your fish relatively small amounts of food once or twice a day. If they eat all of the food within a few minutes, it is okay to add a bit more, as long as they eat all (or at least most) of it within a short period of time.How often do you change GloFish water? ›
Twice a month if you have a lot of fish, or if you have fish that produce more waste, such as goldfish or cichlids. Clean your filter of any sludge, particularly if it has an impeller, every other month. Do a 25% water change once a month. Reduce the amount of food you feed your fish.Can you use tap water for GloFish? ›
GloFish Water Conditioner is safe and effective for all tropical fish. Makes tap water safe for GloFish fluorescent fish.Can 2 GloFish sharks live together? ›
GloFish Sharks can be semi-aggressive, so we advise keeping only one shark per aquarium. They can, however be housed along with other GloFish Tetras, Danios, and Barbs. It should also be noted that our GloFish Barbs can potentially become aggressive if they are not kept in groups of five or more.What happens if you overstock a fish tank? ›
An overstocked fish tank is an aquarium with too many fish. We all like adding new fish after a trip to our local fish store but when we add too many fish, we reduce swimming room, fish don't have enough oxygen and all the fish will generate a huge amount of waste. It is a common mistake to make for new fish keepers.What fish are the easiest to take care of? ›
Some of the easiest fish to take care of include white cloud minnows, cherry barbs, goldfish, guppies, neon tetras, and cory catfish. All of these species are relatively peaceful, non-demanding fish that do well in a beginning fish tank.