Red-Eye Puffer (Carinotetraodon irrubesco) is an advanced-level freshwater fish that needs at least 20 gallons and 72-79°F. A small freshwater puffer with a red eye, sold as a cousin of the dwarf puffer. It is curious but nips fins and may bully tankmates, so most keepers give it its own heavily planted tank and feed hard-shelled snails to wear down its teeth.
Care facts at a glance
| Scientific name | Carinotetraodon irrubesco |
|---|---|
| Family | Tetraodontidae |
| Origin | Southern India |
| Adult size | 2.5-3 in |
| Minimum tank | 20 gallons |
| Temperature | 72-79°F |
| pH | 6.5-7.5 |
| Temperament | Semi-aggressive, fin-nipper |
| Social behavior | Solitary or a well-planted group with experience |
| Swim level | Mid to lower |
| Difficulty | Advanced |
| Diet | Carnivore: snails, frozen bloodworms, brine shrimp, small live foods |
| Typical lifespan | 4-5 years |
Quick tips
- Do not assume it is a community fish; it nips fins.
- Offer snails regularly so its teeth stay worn down.
- Keep the water very clean; puffers are messy eaters.
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