Water parameters
Overview
The spotfin hatchetfish is a species considered large among hatchetfish and reaches 6–7 cm. Its silvery body consists of a straight back and a very deep, curved chest; there is a black spot on the dorsal fin. By beating its pectoral fins with powerful muscles, it can leave the water and practically fly over short distances. It is seen in the trade less often than other hatchetfish.
Tank Setup
- At least 120 liters for a group of 6–10; a large surface area is important.
- 24–27°C, pH 6–7.5, soft to moderately hard water.
- Floating plants over part of the surface, open space over the rest.
- A tight-fitting lid is essential.
Diet
It takes its food from the surface. Floating flakes and granules, frozen or live mosquito larvae, fruit flies and brine shrimp are suitable. Since it does not take sinking food, foods that stay at the surface should be chosen.
Behavior and Compatibility
A peaceful and shy schooling fish. It becomes stressed with aggressive species that share the surface; it behaves more calmly in a large group.
Good companions: midwater tetras, corydoras, plecos, peaceful cichlids.
Avoid: aggressive surface-dwelling species, large predators, barbs that chase constantly.
A short profile for this species
The Spotfin Hatchetfish page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.
Tank mates
This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.
Usually compatible
Flame Tetra
Blackfin Corydoras
Polystictus Corydoras
Emerald Betta
Emerald Cory
Porthole Catfish
Keyhole Cichlid
Cupid Cichlid
Geophagus altifrons
Geophagus surinamensis
Should not be kept together
Hobbyist notes
Things you won't find in books, learned by trial and error. The most helpful ones are on top.
Change history and contributors
- Page created · October 16, 2026