3Amphiprion ocellaris – Ocellaris Clownfish One of the most common grown clownfish.Hardy, cheap, abundant and a great first saltwater fish.Makes a great movie.
4Economics of Clownfish Most inexpensive is $12.99 for Ocellaris.Most expensive is $ for Super Black Ice Snowflake Clownfish.
5Clownfish are among the most popular species of aquarium fish in the world. A United Nations report found that at least 145,000 of them were traded internationally between 1997 and 2002.Raised in Singapore, Taiwan, and the US.By 2011, Taiwan could breed 2 million clownfish and generate NT$100 million in the lucrative ornamental fish market, while helping save the species in the wild
6Life cycle of clownfish The eggs looked like little capsules about 2 to 3 mm long and 1 mm wide.The eggs take about 8 to 10 days to hatch.Larval period of 10 to 20 days.Critical stages are the two first days of larvae life and the moment metamorphosis takes place, when mortality can be high.After about 25 days, juveniles can be moved to a different tank to begin acclimation.Clownfish are protandrous hermaphrodites.
8ReproductionClownfishes were among the first ornamental species to be commercially bred in the 1980’s.Clownfishes typically reach sexual maturity at an age of 8-18 months.Spawning occurs during daylight hours and a small clutch of eggs is laid usually on the underside of a rock or other solid base.A typical nest may contain eggs for the smaller species such as percula, or up to several thousand eggs for maroon clownfish.At an age of days clownfishes will undergo metamorphosis.This is when clownfish “earn their stripes” and will begin to look like real clownfish.
9Production methods RAS tank systems used for Breeding Adults. Prior to hatching, the eggs are moved to a small tank with very low water movement.Round tank is preferred to enhance livability.Tank should be fitted with both mechanical and biological filters.
10FeedingThe first few days the fry should be fed live rotifers that have been prepped and fed phytoplankton.After fry reach about 5mm start to feed brine shrimp.By day 21 start feeding crushed flaked food and large brine shrimp.
12Water Chemistry The temperature should be around 24°C - 27°C. Salinity should be about 28 ppt.NH3 should be less than 3 ppm.pH should be kept about 8.0.Larval tank should be round.Use airstone for O2 delivery.Fry should be kept in very low light prior to 21 days of age.Slow well circulated water.
13Advantages and Disadvantages Hardy fishPeople tolerantEasy to raiseVery colorfulNumerous species to choose from.DisadvantagesSome can be very expensiveMost still wild captured.Can be territorial.Saltwater species