Water parameters
Overview
Ancistrus multispinis is a bristlenose that lives in the Atlantic coastal streams of Brazil stretching from Rio de Janeiro to Rio Grande do Sul. It looks similar to the common bristlenose, but its range lies further south and its temperature values are somewhat lower. Its standard length reaches up to 14 cm.
Academic studies on rearing the fry of this species have also been carried out in Türkiye. It is easy to keep and breeds readily in the aquarium.
Tank Setup
- 100 liters for one or two fish.
- Roots, caves and flat stones; males claim caves.
- 22–25°C, clean and well-oxygenated water; moderate flow.
Diet
Mainly herbivorous. Make vegetable and spirulina tablets, blanched zucchini, cucumber and spinach the staple; bloodworms can be given once a week. It rasps on roots. The algae in the aquarium is not enough on its own.
Behavior and Compatibility
Peaceful; it leaves other fish and shrimp alone. Males chase each other over caves. It is more active at night, but is also seen during the day once settled.
Good companions: Community fish that like temperate water: tetras, rasboras, danios, corydoras, shrimp.
Avoid: Large cichlids that claim the bottom, species that need very warm water such as discus.
A short profile for this species
The Ancistrus multispinis 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
Glass Tetra
Blackfin Corydoras
Polystictus Corydoras
Emerald Betta
Emerald Cory
Emerald Dwarf Rasbora
Porthole Catfish
Keyhole Cichlid
Buffalohead Cichlid
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






