Name: Black Gladiator Clownfish - Amphiprion ocellaris
Brand: TSA Fish
SKU: CLOWNxBlkGld
Price: 124.99 USD
Availability: OutOfStock

Black Gladiator Clownfish - Amphiprion ocellaris

$124.99

Black Gladiator Clownfish - Amphiprion ocellaris

$124.99

Goes well with:

Amphiprion ocellaris

Care Level Easy

Temperament Peaceful

Reef Safe Yes

Max Size 4 inches

Tank Size 20 gallons

Diet Omnivore

Common Name Ocellaris Clownfish

Origin Indonesia

Food

Pellets Mysis Shrimp Nori

Tags

Clownfish Reef Safe Omnivore

Diet & Feeding

Ocellaris Clownfish are omnivorous and benefit from a varied diet. In captivity, they should be fed a mix of high-quality marine pellets or flakes, supplemented with frozen or live foods such as brine shrimp, mysis shrimp, and finely chopped seafood. Feeding should occur 1-2 times daily, ensuring that all food is consumed within a few minutes to maintain water quality. It's important to avoid overfeeding, as this can lead to poor water conditions and health issues.

Behavior

Ocellaris Clownfish exhibit a distinctive swimming style with a gentle, bobbing motion. They are social and often form symbiotic relationships with sea anemones, which provide protection. Ocellaris Clownfish are territorial, defending their chosen anemone home from intruders. They are generally peaceful and compatible with other non-aggressive fish species. However, they may display aggression towards other clownfish species or conspecifics if space is limited. They thrive best in groups or pairs, with a clear hierarchy established, led by a dominant female.

FAQs

How can I successfully pair two Ocellaris Clownfish, and what behaviors show they’re actually forming a pair instead of just fighting?

Start with one noticeably larger Ocellaris and one smaller juvenile/subadult; this maximizes the chance they’ll form a female–male pair. Avoid mixing two established females, as they will fight severely. Introduce them to the tank at the same time, or add the smaller one in a transparent acclimation box inside the display for a few days so they can see each other without physical contact. Normal pairing behavior includes brief chasing, body twitching or “seizure-like” spasms by the smaller fish (a sign of submission), and short-duration nipping that doesn’t cause torn fins or missing scales. This phase can last days to a couple of weeks. If the chasing is constant, the smaller fish is pinned in corners, or you see ripped fins and missing chunks of flesh, they are not settling; use a divider or remove one fish. Once paired, they will often sleep near each other, hover in the same territory, and the submissive fish will frequently quiver when approached by the dominant one.

My tank has no anemone. What are some realistic hosting substitutes that Ocellaris Clownfish commonly accept, and how can I encourage them to use them?

Ocellaris often adopt alternative hosts, especially in captivity. Common substitutes include soft corals (toadstool leathers, large hairy mushrooms, colts, Xenia), large-polyp stony corals (frogspawn, hammer, torch—though stinging risk and coral stress must be considered), and sometimes artificial “nem” decorations or dense macroalgae clumps. To encourage use, place the surrogate host near their preferred hangout and avoid high, chaotic flow over it. Housing them in a smaller tank or section where the “host” is the most prominent structure increases the chance they’ll use it. Some hobbyists tape a printed photo of clowns in an anemone to the glass right by the surrogate, which occasionally prompts exploration, though results are mixed. Ocellaris may also remain “hostless” and simply hover near a rock ledge or powerhead; this is normal and not harmful as long as they’re feeding and behaving normally.

My captive-bred Ocellaris Clownfish keeps swimming in the powerhead’s flow and barely leaves one corner of the tank. Is this normal, and how do I adjust flow and aquascape specifically for this species?

Many Ocellaris, especially captive-bred, establish a very small territory and may remain in one corner or near a single object (overflow, powerhead, top corner). Sitting in moderate flow and “surfing” a powerhead is very common and not automatically a cause for concern. For Ocellaris, provide moderate, indirect flow in their chosen area—aim the main powerheads so they don’t blast the spot where the clowns hover, yet still keep detritus from settling. Create at least one sheltered zone with rockwork that breaks direct current; they often adopt that area as a home base. If the fish is eating well, has full fins, and shows normal color and respiration, the corner-hugging is a normal species trait. Reduce flow only if they’re being pushed around uncontrollably, breathing rapidly, or can’t rest without constant fin effort; otherwise, maintaining good circulation is more important than forcing them to roam.

I want to breed my Ocellaris Clownfish pair. What specific environmental cues and diet changes reliably trigger them to start laying eggs in a home aquarium?

Ocellaris are among the most reliable marine breeders, but they require stability and conditioning. Aim for 1.023–1.026 salinity, 78–80°F (25.5–26.5°C), and very stable parameters (ammonia/nitrite 0, nitrate ideally under 20 ppm). Provide a flat, easily cleaned surface near their territory, such as a piece of ceramic tile, a small terracotta pot, or a smooth rock placed where they already hang out. They often clean this surface obsessively before spawning. Increase feeding to 3–4 small meals per day, focusing on high-quality, varied foods: enriched frozen mysis, finely chopped seafood, quality marine pellets, and vitamin- or HUFA-enriched frozen foods. Good body condition on the female (slightly plump belly) and a settled, established pair are essential. Maintain a consistent light schedule (10–12 hours of light) and avoid large, sudden changes in water chemistry or temperature. Once conditioned, many Ocellaris pairs spawn on a roughly 10–14 day cycle. Note that raising larvae requires a separate rearing setup, rotifers, and careful planning.

My Ocellaris Clownfish has started nipping at my hand and biting when I work in the tank. Is this aggression normal for this species, and how can I manage it without stressing them?

Territorial aggression, especially from the female, is common in established Ocellaris, particularly in smaller tanks or once they have a favored site or egg clutch. Biting at hands is a typical defensive behavior and not a sign of disease. To manage it, do maintenance during their “sleepy” period shortly after lights on or just before lights out, when they’re calmer. Use a feeding distraction by adding a small amount of food at the opposite side of the tank right before you put your hand in. Wearing thin aquarium gloves helps prevent painful nips and reduces skin oils in the water. Avoid repeatedly disturbing their nest area or host site; plan rock or coral work between spawn cycles if they breed. If aggression is extreme, slightly rearranging rockwork can reset territory boundaries, but this may also cause short-term stress. As long as they aren’t injuring tankmates or themselves, this defensive behavior is typical for a bonded Ocellaris pair.

You will receive a fish SIMILAR in design and size to the fish in the photo. This is NOT a WYSIWYG fish.

Approx. Size: 1.25" to 2"

Black Gladiators are a variant of the Black Gladiator Ocellaris with smooth exaggerated barring, that some say look like as if someone painted them on, which is where the name DaVinci comes from. A DaVinci has no bars connecting on either side. They also have the name Gladiator for their head barring looking like a gladiator’s helmet.

- Adaptability to Aquarium Life: Clownfish are well-suited for captivity due to their hardy nature and ability to adapt to various tank environments, making them popular among both novice and experienced aquarists.
- Symbiotic Relationship with Anemones: In captivity, clownfish often form symbiotic relationships with anemones, similar to their behavior in the wild. Providing anemones in the tank can enhance the well-being and natural behavior of clownfish.
- Breeding and Conservation: Clownfish are relatively easy to breed in captivity, contributing to their conservation by reducing the need for wild-caught specimens. Successful captive breeding programs help maintain healthy populations and alleviate pressure on wild clownfish populations.

Introduction to Saltwater Clownfish

Clownfish are among the most popular and recognizable marine fish, known for their bright colors, hardy nature, and fascinating symbiotic relationships with anemones. Native to tropical reefs in the Indo-Pacific, these fish thrive in reef aquariums of all sizes, making them an excellent choice for both beginners and experienced aquarists. Clownfish are incredibly adaptable, and many aquacultured varieties are available, making them easier to care for and less aggressive than wild-caught specimens.

Care Requirements

Care Level: Easy Minimum Tank Size: 20 – 50+ gallons Ocellaris & Percula Clownfish – 20+ gallons (smaller and more peaceful) Maroon Clownfish & Larger Varieties – 50+ gallons (more aggressive, need more space) Aquarium Setup: Prefers rock structures for hiding and stable water conditions.

Diet & Nutrition

Clownfish are omnivores and thrive on a varied diet that includes both meaty and plant-based foods. Diet: Omnivorous – Eats a mix of proteins and algae

Recommended Foods:

High-quality marine pellets and flakes Frozen mysis and brine shrimp Chopped seafood and enriched frozen foods Algae-based foods (spirulina, seaweed sheets) Feeding small portions 1-2 times per day ensures optimal health, vibrant coloration, and proper growth.

Lifespan & Growth Rate

Lifespan: 6-10+ years Growth Rate: Moderate – Most species reach 2-6 inches depending on the variety With proper care, clownfish can live over a decade in captivity, making them a long-term commitment for aquarists.

Temperament & Compatibility

Temperament: Peaceful to Semi-Aggressive – Can become territorial as they mature Reef Safe? Yes – Clownfish do not harm corals or invertebrates Clownfish are peaceful fish but may become territorial as they establish their space, especially when paired with an anemone. To ensure compatibility: Best kept in pairs or small groups—but avoid mixing different clownfish species in small tanks. Introduce them before more aggressive fish to help them establish their territory. Compatible with most reef-safe community fish, including wrasses, gobies, and tangs.

Common Challenges & Considerations

Aggression in Larger Species: Maroon Clownfish and Tomato Clownfish can be highly territorial and may bully tankmates. Hosting with Anemones: While not required, clownfish may form a symbiotic bond with certain anemones like Bubble Tip Anemones (Entacmaea quadricolor). However, not all clownfish will host anemones in captivity. Jumping Risk: Clownfish can jump out of open-top tanks, so a lid or mesh cover is recommended. Water Conditions Temperature: 74-80°F dKH (Alkalinity): 8-12 pH: 8.1-8.4 Specific Gravity: 1.020-1.025 Clownfish are hardy and adaptable, but stable water parameters are essential for long-term health.

Color Varieties & Popular Species

Clownfish come in a wide variety of colors and patterns, with many aquacultured morphs available. Some of the most popular species include: Ocellaris Clownfish (Amphiprion ocellaris) – Classic "Nemo" appearance, available in wild-type and designer morphs Percula Clownfish (Amphiprion percula) – Similar to Ocellaris but with brighter colors and thicker black outlines Maroon Clownfish (Premnas biaculeatus) – Deep red coloration, highly territorial and best kept alone or in pairs Snowflake Clownfish (Amphiprion ocellaris variant) – White and orange designer morph with irregular banding

Tags: Beginner Fish Captive-Bred Clownfish Reef Safe

SKU: CLOWNxBlkGld