Arulius Barb (Dawkinsia arulius) is an intermediate-level freshwater fish that needs at least 55 gallons and 72-79°F. A fast, elegant barb with a long, flowing dorsal fin on adult males and bold dark bars. It is much more active and bigger than a cherry or checker barb, so give it a long tank, strong flow and a group.
Care facts at a glance
| Scientific name | Dawkinsia arulius |
|---|---|
| Family | Cyprinidae |
| Origin | Cauvery river system, southern India |
| Adult size | 4-5 in |
| Minimum tank | 55 gallons |
| Temperature | 72-79°F |
| pH | 6.0-7.5 |
| Temperament | Active, peaceful but boisterous |
| Social behavior | Schooling, keep 6+ |
| Swim level | Mid to upper |
| Difficulty | Intermediate |
| Diet | Omnivore: flakes, pellets, frozen foods, some vegetable matter |
| Typical lifespan | 5-7 years |
Quick tips
- Keep six or more to spread out chasing.
- Use a long tank with open swimming space and a tight lid.
- Avoid very slow or long-finned tankmates.
San Diego water
Captive-bred stock usually adapts to San Diego tap water with slow acclimation. For best color and health, many keepers blend tap with RO/DI water. Learn the numbers in our San Diego tap water guide.
Before you buy
Make sure your tank is cycled (how to cycle a tank), check your numbers with the water testing guide, and use the compatibility guide to check tankmates. These are general ranges; individual fish and local water vary.
Find it at Pet Zone
Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.
4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm
Aquascaping, planted tanks
4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm
Monster fish, koi