Carnegiella strigata

Common name
Marbled hatchetfish

Description
Funny looking, very nervous fish that lives at the water surface.

My experiences
In my aquarium this fish is sensitive for the disease fin rot, this is probably because this fish is very nervous and therefore more open to diseases. If this fish only hears a small noise it goes to the 'safe' mid zone of the aquarium. For a while this fish did not do it very good in my aquarium and a shoal was replaced within the time of one year, but the last time this fish does not give any problems anymore. The reason therefore is probably that my aquarium is doing better and needs less maintenance then before. Therefore I don't have to disturb this nervous fish so often and it is less sensitive for diseases.

Alternative fishes that live at the surface
Because the Carnegiella strigata did not do it very good in my aquarium I searched for alternatives for fishes that live at the water surface for a while, but couldn't find some.  Some time ago  I received an E-mail with two suggestions for fishes that live at the water surface, which I will briefly describe below.

Dermogenys pusillus: see second picture on this page. This fish can reach a length of 7 cm and likes to have some room to swim at the surface, but most of the day it takes in a small territory for the other Dermogenys pusillus with a diameter around 10 cm. To other fishes this fish is very tolerant. This fish must be held in a group of one male en a number of females. This because the males aren't tolerant to each other. As food this fish prefers live food but also eats dry food. 

Nannobrycon eques: see third picture on this page. This shoal fish can reach a length of 5 cm and can be held in small aquariums. This fish dislikes wild fishes in the aquarium. This sensitive fish prefers soft water with a pH of about 6.5. Dry food satisfies for this fish.

 

Foot-note
The picture Carnegiella strigataof on this page is taken from my own aquarium. The other two pictures are taken from the book "Tropische aquariumvissen encyclpedie" written by Esther J.J. Verhoef-Verhallen.

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