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Max Size: 5cm

Eggers Killifish (Nothobranchius eggersi)

The Egger's Killifish is peaceful, hardy, somewhat timid, and an extremely colourful fish. Their small size makes them perfect for the nano or planted aquarium. Beginner aquarists can keep this Killifish, although they may find breeding them and raising the fry challenging.

These Killifish will thrive in a species only aquarium with one male and 3 to 4 females; however, if you prefer, you can house these fish with smaller peaceful fish such as Rasboras, Danios, smaller Tetras and Corydoras Catfish as well as Shrimp and Aquatic Snails. Nevertheless, it would be best to avoid keeping them with long-finned species as they may get nipped at and larger, more aggressive tank mates as they may be picked on and outcompeted for food.

Eggers Killifish prefer an aquarium with a very slow-moving to still water current. They will not eat or bother aquatic plants and will appreciate dim lighting, so floating plants would be ideal. These fish are excellent jumpers, so you must ensure your aquarium has a tight-fitting lid.

There are two colour variants of Eggers Killifish: red and blue. The red variant has a silvery blue body colouration contrasted with many red dots and lines. In addition, their dorsal, anal and pelvic fins are bright red with white edging, and their caudal fin is solid red. The Blue variant has a greenish-blue body with the occasional red marking on it, and their fins are also greenish-blue with slight red markings on them and white edging. The females of both variants are much duller, have no patterning, and have transparent fins.

Quick Facts
Scientific NameNothobranchius eggersi
Year Described1982
Other NamesRed Eggers Killifish, Blue Eggers Killifish, Orchid Nothobranch
ClassificationActinopterygii
OrderCyprinodontiformes
FamilyNothobranchiidae
GenusNothobranchius
OriginsTanzania
TemperamentPeaceful
Aquarium LevelTop
DifficultyBeginner - Intermediate
ShoalingNo
Best kept asTrios
DietOmnivore
ReproductionEgg-Layer
Lifespan12 - 18 months
Water Parameters
Water TypeFreshwater
PH7.0 - 8.0
GH5 - 20
TDS179 -536
Temperature
73 - 79℉
22.8 - 26.1℃

Photos

Eggers Killifish
Eggers Killifish

Natural Habitat

Eggers Killifish are endemic to the lower basin of the Rufiji, Kanga, Saadani, Utete, Kigongo and Ruhoi Rivers in Tanzania in Africa. They inhabit slow-moving stagnant waters in pools, marshes, ditches and swamps. These habitats have muddy substrates and are scattered with leaf litter. The water in these fish's habitats typically declines during the dry season and eventually becomes entirely dry for several months every year.

Feeding

Eggers Killifish will thrive on a diet that consists mainly of live and frozen foods like brine shrimp, daphnia and bloodworms; not only will this improve the health of the fish, but it will also help increase the number of eggs they produce. After some encouragement, these fish will also accept good quality dried foods such as flake, granules, and pellets.

Sexual Dimorphism

It is effortless to differentiate between the male and female Eggers Killifish. The males are much brighter in colour and are somewhat larger, and they exhibit patterning; these patterns can vary depending on the location from which the fish originated. In contrast, the females are smaller, have very little to no colour and lack the patterning of males.

Breeding

When the natural habitat of the Eggers Killifish becomes dry throughout the dry season, the adult fish will die, leaving fertilised eggs in the substrate. These eggs are unsusceptible to desiccation and will stay there until the rains return around 5 to 6 months later. At this point, the fry will hatch and develop fast, becoming sexually mature around three weeks old.

In the aquarium, Eggers Killifish are bottom spawners. These fish will lay their eggs on the substrate; therefore, peat is often used as a substrate or is kept in containers at the bottom of the aquarium. The adults spawn a few eggs during every embrace quite often. Therefore, getting up to 100 eggs quickly with the proper diet is possible.

You must then collect the peat, dry it to the consistency of pipe tobacco, and store it between 79 and 82 degrees Fahrenheit for several weeks. The amount of time required to hold the eggs varies depending on factors, including the temperature and the age of the fish. You will be able to tell when eggs are ready to be hatched by viewing them under a microscope. They should have a visible eye which is surrounded by a gold ring. When the eggs are prepared, you will need to re-wet the peat. After about two hours, the fry will begin to hatch.

You will initially need to feed the fry with infusoria type foods such as rotifers or vinegar eels moving on to microworms and baby brine shrimp as they develop. These fry grow quite quickly, so make sure you provide them with plenty of food.

Other Killifish of interest

American Flagfish(Jordanella floridae)
Blue Striped Rivulus Killifish(Rivulus Xiphidius, Laimosemion xiphidius)
Bluefin Notho(Nothobranchius rachovii)
Clown Killifish(Epiplatys annulatus)
Lyretail Killifish(Aphyosemion australe)
Mamou Killifish(Scriptaphyosemion guignardi mamou)
View all Killifish
Date Added: 20/05/2022 14:50:54 - Updated: 20/05/2022 16:09:34