Water parameters
Overview
Hypsolebias magnificus, formerly listed in the genus Simpsonichthys, is an annual (seasonal) killifish native to the interior of Brazil. The male's body and broad fins carry a striking pattern of alternating dark and bright pale blue bands. It is known from only a few temporary pools, and its habitat is threatened by agriculture and water management projects. It is difficult to keep and breed: the eggs are usually stored in damp peat for 3–6 months, the hatching rate is low and the fry are delicate. It is suitable only for experienced keepers of annuals.
Tank Setup
- A 25-liter species tank for one male and two females.
- A layer of peat on the bottom or a container filled with peat; dim light and a few plants.
- 23–26°C, very soft and slightly acidic water; an air-driven sponge filter.
- A tight lid is essential; 25% water change weekly.
Diet
Carnivorous, with a small mouth. It should be fed live and frozen foods such as daphnia, cyclops, brine shrimp and small bloodworms.
Behavior and Compatibility
Males are rough with each other and persistent towards females. Because it is a small and delicate species, it should be kept only with its own species.
Good companions: females of its own species.
Avoid: community fish of any kind, other annual species, large and active fish.
A short profile for this species
The Hypsolebias Magnificus 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
Blackfin Corydoras
Polystictus Corydoras
Emerald Betta
Emerald Cory
Porthole Catfish
Keyhole Cichlid
Cupid Cichlid
Buffalohead Cichlid
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







