Breeding Clownfish

Thanks to Disney's Motion Picture 'Finding Nemo,'substances with a vertical surface, a layer of coral
almost everybody is familiar with clownfish.sand on the bottom, bright lighting, good filtration,
Clownfish, or Anemonefishes, from the familyand a protein skimmer. Your clownfish should be
Pomacentridae, are one of the easiest tropical marinestress free, which means no aggressive tank mates
aquarium fish to breed. Clownfish regularly lay eggs inand good water quality. As for feeding, clownfish
aquariums. They have quite large eggs and larvae,need a mixed diet of fresh raw seafood and
and since the larvae easily eat cultured live foods,vegetables. A good diet includes prawns, mussels,
raising them is somewhat simpler than it is with manyand squid. It is best to feed small bits at regular
other marine species.intervals.
You need to get a pair if you want to breedSpanning can begin 1 to 12 months after the fish
clownfish, and that's quite interesting - believe it orhave settled into their new home. When the fish are
not, clownfish are all born as males! When they areready to spawn, they become very aggressive. The
adults, the largest and the most dominant fish of themale clownfish will dance up and down in front of the
group will undergo a sex change and become afemale (also known as "clownfish waggle"). They will
female. The second largest usually becomes thealso start to clean their selected rock by robustly
breeding male, while all the other fish remain juvenilesbiting it. The spawning itself usually occurs in the
and gender-neutral. If the breeding female disappears,afternoon or early evening. Once the spawning is
the breeding male will change to a female, and so on.complete (within several hours) the male takes on
Buying an established pair may be a reasonable wayresponsibility for attending the eggs, whereas the
to go, but it is often better to have a group offemale acts as protector of the eggs and supervisor
juveniles growing up together. If you choose to buyof her male.
a pair you should look for a pair that goes aroundSpawning is likely to occur again at intervals of 12 to
together. Sometimes you can be lucky enough to get18 days. The eggs should be left in the care of the
a pair already spawning. Anyhow, establishing an adultparents and not removed, unless the parents are
pair can be a little tricky; and you need to keep yourknown to be egg eaters. At first the eggs are a
eyes on them to make sure that the female doesn'tbright orange colour, but after several days this
kill the male.diminishes and the eyes appear. Hatching usually
The next thing is to set up the tank. The tank shouldtakes from 6 to 15 days, depending on temperature.
be large enough, approximately 200 liters for theThe most critical stage of the fry is the first 10 days
breeding pair. It is better to keep a pair alone in anof their larvae span. If you can get your fry to
aquarium when trying to spawn clownfish.survive this period the rest of their raising should be
The aquarium should be furnished with a niceeasier.
anemone, a few live rocks and other rocky