Overview:

Longfin Clownfish B28 is best kept in a stable, mature marine aquarium with excellent water quality and plenty of structure. Despite the “longfin” name, this is a delicate ornamental fish with extended fin tissue that can be more easily damaged than in standard clownfish strains. A peaceful but well-established environment is ideal, with stable salinity, temperature, and pH. Provide live rock for shelter, a few open swimming areas, and one preferred host area such as a large soft coral, anemone only if the system is mature and appropriate, or a sheltered corner they can claim as their own. Moderate flow, strong oxygenation, and low nitrate levels help reduce stress and support long-term health. Avoid sudden changes in lighting, chemistry, or temperature, as this species is especially sensitive to instability.

Diet and Feeding:

Longfin Clownfish B28 is an omnivore and does best on a varied, high-quality diet. Offer small portions 1–2 times daily, feeding only what is consumed quickly to protect water quality. A strong staple is marine pellet or flake food formulated for clownfish or omnivorous saltwater fish. Supplement regularly with frozen mysis shrimp, enriched brine shrimp, krill pieces, chopped seafood, and finely prepared marine blends. Occasional algae-based foods or spirulina help round out nutrition. Because of its fin structure and generally moderate activity level, overfeeding should be avoided; excess food can degrade water quality and increase disease risk. Vitamin-enriched foods are especially helpful during acclimation, recovery, or breeding conditioning.

Compatibility:

This species is usually compatible with other peaceful to semi-peaceful reef-safe tankmates, especially gobies, blennies, dartfish, small wrasses, and many invertebrates such as snails and cleaner shrimp. It may become territorial, particularly once it claims a nesting area, so tankmates should be chosen with enough space to prevent crowding. Avoid highly aggressive fish, fin-nippers, large predatory species, and overly boisterous tankmates that could stress or damage the long fins. If kept with other clownfish, only do so in larger systems, and be prepared for dominance behavior. Similar-sized peaceful companions are best. A paired Longfin Clownfish B28 may be more stable and confident, while solitary individuals can still thrive if given a secure territory.

Health and Quarantine:

Longfin Clownfish B28 should always be quarantined before introduction to the display tank. A 2–4 week quarantine allows monitoring for marine ich, velvet, brooklynella, flukes, and bacterial fin damage. Because the fins are extended and delicate, any nipping, fraying, or torn tissue should be addressed early. Maintain pristine water, steady temperature, and reduced stress during quarantine. Watch for rapid breathing, flashing, loss of appetite, clamped fins, or unusual hiding. Preventive care includes regular water testing, careful acclimation, varied feeding, and avoiding overcrowding. Clean equipment and a controlled feeding routine are essential for keeping this species healthy long term.

mysis shrimp brine shrimp marine flakes pellets
Longfin Clownfish B28 are active, midwater swimmers that spend much of their time near a host anemone, coral structure, or favored shelter, and they do best in a tank with ample hiding spots and stable rockwork. They are generally peaceful to tank mates but can become territorial, especially toward conspecifics and other clownfish, with pairs or established individuals often defending a small area. A minimum aquarium size of 20 gallons is typically recommended for a single pair, with visual barriers and varied rockwork helping reduce aggression and give them retreat space. They coexist well with most reef-safe species, including gentle community fish and invertebrates, though overly boisterous or similarly shaped tank mates may be challenged. As omnivores, they accept a wide range of prepared foods, including high-quality pellets, frozen mysis, brine shrimp, and finely chopped seafood, with occasional algae-derived fare beneficial for balance. Their feeding behavior is opportunistic rather than specialized, and regular small feedings support color, growth, and overall condition.

FAQ

Frequently Asked Questions

About the Longfin Clownfish B28

  • How is Longfin Clownfish B28 different from a standard ocellaris clownfish, and does the longfin trait change its care needs?
    Longfin Clownfish B28 is a selectively bred designer ocellaris-type clownfish with extended fin rays, giving it that flowing “longfin” appearance. The core care is the same as a normal ocellaris: warm saltwater, stable parameters, varied carnivorous diet, and low-to-moderate flow. The longfin trait does not require special water chemistry, but it does make the fish a bit more delicate in terms of fin damage, so sharp rock edges, aggressive tankmates, and strong turbulent flow are more of a concern than they would be for a standard clownfish.
  • What size aquarium is best for a Longfin Clownfish B28 pair, and can they be kept in a nano reef?
    A single Longfin Clownfish B28 can live in a well-established tank as small as 15–20 gallons, but a bonded pair is much better in 20–30 gallons or more. They can absolutely work in a nano reef if the tank is mature, the filtration is stable, and there are no overly aggressive or fin-nipping tankmates. Because longfin clownfish are more susceptible to fin wear, a smaller tank must still have enough open swimming space and gentle flow so the long fins aren’t constantly being battered against rockwork or intakes.
  • Are Longfin Clownfish B28 more prone to fin tearing or health issues than regular clownfish?
    Yes, they can be a little more prone to physical fin damage simply because the fins are longer and more delicate. The most common issue is not disease but mechanical wear from rough decor, powerheads, overflow grates, or bullying tankmates. They are otherwise hardy once acclimated, but high-quality water and low-stress housing matter more than usual. If you see fraying, first check for environmental causes before assuming infection. Good iodine-rich, varied foods and stable conditions help them maintain fin integrity and recover from minor damage.
  • Will a Longfin Clownfish B28 host in an anemone, and are there specific anemones it prefers?
    Many Longfin Clownfish B28 will host in an anemone if one is available, but hosting is never guaranteed. Like other ocellaris-type clownfish, they commonly accept Bubble Tip Anemones (Entacmaea quadricolor) more readily than most others. They may also host in soft corals, LPS, or even artificial items if no anemone is present. If you want to pair it with an anemone, make sure the anemone is fully established and your lighting, flow, and tank maturity are appropriate. The longfin trait doesn’t change host preference, but the fish should be protected from anemones with overly strong stings if its fins are especially long or delicate.
  • Can Longfin Clownfish B28 be kept with other clownfish, and how do you prevent aggression or sex-change problems?
    In most cases, no—you should not keep a Longfin Clownfish B28 with other clownfish unless you’re intentionally keeping a bonded pair or a very carefully managed group in a large system. Clownfish are territorial, and mixing species or extra individuals often leads to fighting, stress, and fin damage. Like all clownfish, they are protandrous hermaphrodites: the dominant fish becomes female, and the subordinate remains male. If you buy two juveniles, they often form a pair, but if you mix sizes incorrectly, the larger fish can become female and dominate. For the safest setup, buy a known pair or introduce two juveniles together at similar size into a tank with plenty of territory and hiding spaces.