Blue Gularis Killifish Lifespan – A Useful Information You Need To Know

The Blue Gularis Killifish is a beautiful freshwater fish that is popular among aquarists. They are relatively easy to care for and make an excellent addition to any aquarium. One of the most important things to know about these fish is their lifespan. In this article, we will discuss the Blue Gularis Killifish lifespan and how to extend it.

Blue Gularis Killifish: Basic Information

Blue Gularis Killifish
Blue Gularis Killifish

The Blue Gularis Killifish (Fundulopanchax sjoestedti) is endemic to Nigeria and Cameroon, Africa. It is found in water holes, streams, and marsh environments. Numerous tropical fish keepers rate the Blue Gularis Killifish as one of the most well-known and sought-after killifish species.

Fundulopanchax sjoestedti is a vast, colorful, semi-aggressive killifish with a three-forked tail that frequently sports long streamers at the tips.

A male of this species has a distinctive color pattern that is predominantly blue on the back and orange on the flanks, with darker reddish-brown stripes. This fish has red markings on its head and white spots on its sides. It also has white spots overlaid with white spots on its bottom.

Adult males display a vivid blue and red coloration, with a distinctive “ice blue” colored tail flecked with random spots or striations of black.

There are three-pronged tails, the center of which is a light to fiery orange with a black outline. Their pectoral fins are quite large and trimmed with white and speckled with brown spots along the outer edges. The caudal fin is patterned similarly to the yellowish blue dorsal fin.

Tropical fish keepers can choose from multiple colored varieties, including a Dwarf Red Gularis variety.

Blue Gularis females are smaller and lack the gaudy colors of the males. In general, these fish are dull gray to brown in color and have faint black spots, stripes, reddish spots on their fins, and faint red traces behind their eyes.

Blue Gularis Killifish Lifespan

The lifespan of a Blue Gularis Killifish is around five years. Some factors can affect its lifespan. If the fish is kept in captivity, its lifespan may be shorter due to the stress of living in an unnatural environment. Additionally, if it is not well cared for, its lifespan will be shortened. If it is well taken care of and kept in the perfect aquarium, its lifespan will be much longer.

How To Keep Blue Gularis Killifish Healthy?

Keeping your gularis killifish healthy is not as difficult as you may think. By following a few simple tips, you can ensure that your fish will have a long and healthy life. One of the most important things to remember is to keep the water clean. Regular water changes and filtration will go a long way in keeping your fish healthy. Another important factor is diet. A healthy diet of high-quality pellets or flakes will help your fish grow and stay fit. Let’s scroll down and learn more in detail!

A tank for killifish
A tank for killifish

Fish Tank

Aquaria have a variety of water conditions that they can live in, and Blue Gularis cannot live in all of them. You can keep them in a community tank, but they do best when housed alone in a biotope aquarium of at least 20 gallons filled with fine gravel or sand and with a layer of peat moss or Indian Almond Leaves to keep the water softer. The temperature in the tank must range from 73-79 °F, with a pH range of 6.0-7.5 and a hardness of 5 -19 °DGH.

For the cover, it is best to provide driftwood or bogwood. You should also add floating plants to diffuse overhead lighting and reduce the fish’s chance of jumping out of the tank. In the absence of floating plants, the tank needs to have a tight-fitting cover as Blue Gularis are accomplished jumpers.


The killifish consumes live or frozen foods such as Artemia, Bloodworms, and Daphnia. But they do not generally accept dry food.


Breeding Blue Gularis on substrates is relatively easy, but getting the eggs to hatch and become fry can sometimes be challenging. The eggs of this species do not need to be removed from the water after spawning since they are not annual. The females typically lay their eggs in a spawning mop or in Java Moss, where they will hatch in approximately two months.

It is recommended to place the young in a separate rearing tank after hatching and feed them newly hatched brine shrimp, daphnia, or grindal worms.

Place a few adult Aphyosemion sjoestedti in a breeding tank adorned with many plants, especially floating plants. This is the most systematic way to remove the adults. Afterward, the mature fish are returned to their natural habitat for a few weeks. These plants are usually swollen with fertilized eggs since they have had so much time to spawn during this period. 16 to 18 days after laying, Aphyosemion sjoestedti eggs begin to hatch.

Blue Gularis breeding
Blue Gularis breeding

Another option is to use a spawning mop and a fry rearing tank. Place the mop in a hatching aquarium after the fish utilize it as a spawning spot. It’s essential to keep a close eye on the hatching tank since the mop will include fertilized and non-fertilized eggs. Hand-picking the eggs from the mop instead of depositing the entire mop in a hatchling tank is common among professional breeders since it generally leads to a greater survival rate. When handling the eggs, extreme care must be used.

Another method is called “peat moss incubation,” The eggs are placed on peat moss rather than water. To keep it wet and free of pests, store the peat moss in a container that can be shut snugly. You may keep the box in the dark place at room temperature. Incubation on peat moss requires a six-week wait for the eggs to hatch.

Eggs should be ready to hatch when they become a chestnut brown hue, and you can see tiny black specks through the shell (these are the eyes). Exhale into a bit pill bottle filled with eggs, then screw the top on firmly. Allow the pill bottle to be wormed in your pocket for a few hours so that your body heat may do the work. For the time being, I don’t know why this strategy works so well for Aphyosemion sjoestedti eggs to hatch. Still, it may be due to the combination of mobility and carbon dioxide buildup.

Video: How to Breed Blue Gularis Killifish and Hatching Eggs


How long does it take for killifish to mature?

The fish must spend between three and ten weeks in a laboratory environment to reach maturity. Because of its short lifespan, it has become an essential model for studying aging.

What is the Blue Gularis Killifish price?

The price for one Blue Gularis Killifish varies depending on its age, color, and size. Prices for one Gularis Killifish can start from $4 up to more than $50 dollars. You can also buy them from online stores such as eBay

Are killifish good with other fish?

Generally speaking, most killifish have a laid-back temperament and are peaceful. As a result, they make good tank mates for neon tetras and other calmer tropical fish varieties.

How many killifish are in a tank?

One male and two females need to be kept together at all times. In larger tanks (30+ gallon tanks), you can house up to 12 individuals who will work together as a team.

Final Thoughts

Blue Gularis killifish lifespan is around five years old. Blue Killifishes are relatively easy to care for and make an excellent addition to any aquarium. The price for one Blue Gulphis fish varies depending on its age, color, and size. A healthy diet of high-quality pellets or flakes will help your fish grow. Hope this post is helpful for you. Thanks for reading!


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