Ocellaris Clownfish — Fish Profile
Amphiprion ocellaris
Quick Specs
| Adult Size: | 3.0" |
| Temperament: | semi-aggressive |
| Care Level: | beginner |
| Min Tank Size: | 20 gallons |
| Temperature: | 74-80°F |
| pH Range: | 8.1-8.4 |
| Diet: | omnivore |
| Origin: | Indo-Pacific (Coral Triangle) |
| Lifespan: | 6-10 years |
Overview
Ocellaris Clownfish, made famous as the stars of 'Finding Nemo', are hardy, characterful saltwater fish with bright orange bodies and three white bands. They form a symbiotic bond with sea anemones in the wild. Captive-bred specimens are exceptionally hardy and the ideal first marine fish. They can be kept in pairs or small harems and recognize their owners.
Care Guide for Ocellaris Clownfish
Tank Setup
Ocellaris Clownfish requires a minimum tank size of 20 gallons. Maintain water temperature between 74°F and 80°F, with a pH range of 8.1 to 8.4. A properly sized tank with adequate filtration and regular water changes is essential for long-term health. When housing Ocellaris Clownfish with other species, always choose a tank size that accommodates the most demanding fish in the community.
Feeding
Ocellaris Clownfish is a omnivore feeder. Provide a varied diet appropriate for omnivore species to ensure optimal health and coloration. Feed small portions 2–3 times daily, and remove uneaten food after a few minutes to maintain water quality.
Temperament & Compatibility
This species is classified as semi-aggressive. Ocellaris Clownfish reaches an adult size of 3.0 inches and has a care level of beginner. Always research compatibility before adding new fish to an established aquarium. Individual temperament can vary, so monitor new introductions closely for the first 48 hours.
Origin & Lifespan
Ocellaris Clownfish originates from Indo-Pacific (Coral Triangle) and has an expected lifespan of 6-10 years when kept in proper water conditions with appropriate tank mates and diet.
Compatible Tank Mates
🟢 Good Tank Mates
🟡 Caution Tank Mates
🔴 Risky Tank Mates
Recommended for Ocellaris Clownfish
Ocean Nutrition Marine Pellets — $12.99Marine pellet food for clownfish
Expert Care Tips for Ocellaris Clownfish
- Mid-size tank: Ocellaris Clownfish needs 20+ gallons. Choose a tank at least 2× as long as the fish's adult size (3.0") for adequate swimming room.
- Tropical range: Keep Ocellaris Clownfish at 74–80°F. A 50W heater per 10 gallons is a safe rule of thumb for stable temperature.
- Narrow pH tolerance: Ocellaris Clownfish only tolerates pH 8.1–8.4. Test your tap water before buying — adjusting pH is harder than choosing the right fish for your water.
- Semi-aggressive temperament: Ocellaris Clownfish is generally peaceful but can become territorial. Provide ample hiding spots and avoid housing with fin-nipping species.
- Acclimation: Always drip-acclimate Ocellaris Clownfish over 30–45 minutes. Match temperature and pH gradually to prevent osmotic shock.