There's More to Clownfish Than Finding Nemo
Everyone's first marine fish is a clownfish — and with good reason. They're hardy, entertaining, and full of personality. But most people only ever keep ocellaris and never realise there are around 30 species, plus a load of designer morphs.
The Species Worth Knowing
Common Clownfish (Ocellaris) — The classic. Orange, three white bars, captive-bred pairs everywhere. About as bulletproof as marine fish get.
Tomato Clownfish — Bright red, single white bar, bigger than ocellaris (12cm+) with more attitude. Not ideal for nanos where they'll terrorise everything.
Maroon Clownfish — Gold-stripe maroons are stunning, but they're the most aggressive clownfish species. Best for tanks 200+ litres with fish that can handle themselves.
Designer Morphs — Snowflakes, DaVinci, Onyx, Picasso, Wyoming White — all captive-bred, generally healthy, and some carry serious price tags.
Do They Need an Anemone?
No. Clownfish will host in hammer corals, frogspawn, toadstool leathers, and sometimes random objects. Anemones are actually harder to keep — they need stable, mature water, strong light, and they wander around stinging everything. A hammer coral gives hosting behaviour without the headache.
Buy Captive-Bred
Captive-bred clownfish are hardier, already eating prepared foods, adapted to tank life, and not stripped from wild reefs. The price difference is negligible. Browse captive-bred clownfish from UK sellers.
Pairing
Clownfish are protandrous hermaphrodites — born male, the dominant fish becomes female. Options: buy a confirmed mated pair, get one noticeably larger than the other, or buy two juveniles and let nature sort it out. Introducing two adults of the same species rarely goes well.
Tank Size
A pair of ocellaris thrives in 60–80 litres. Standard reef parameters: 1.025 salinity, 25–26°C, stable alk and calcium.
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