Care guide
Denison barb (roseline shark) care
There's no guide just for Denison barb (roseline shark) yet. Here's caring for barbs, danios and rasboras; ask the seller about anything specific to this species.
- Adult size
- About 15 cm
- Water temperature
- 18–25 °C
- pH
- 6.5–7.8
- Smallest tank
- 300 litres
- Temperament
- Peaceful
- Care level
- Moderate
Barbs, danios, rasboras and minnows are active schooling fish, mostly hardy and great for community tanks. Some barbs nip fins, and danios love open swimming space and current.
Groups and tankmates
Keep them in groups of six or more. Tiger barbs can be nippy; a larger group spreads it out, and they're best kept away from slow, long-finned fish.
Tank
Give danios a long tank with open water and some flow. Tiny rasboras like chili rasboras suit small, planted tanks with gentle filters.
Use a lid: danios and rasboras can jump.
Temperature
White cloud minnows and gold barbs like cooler water and often need no heater; most others prefer 22 to 26°C.
Further reading
General information to help you prepare, not veterinary advice. Every animal is different: ask an experienced vet about yours. Reviewed by PerfectPal on October 13, 2026.