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One research topic at the ZMT is the breeding of ornamental organisms that are attractive for the aquarium market, for example clownfish. The aim is to prevent too many wild catches from reaching the aquarium trade.

Note: During the night the light is turned off in the aquarium and you will only see a black screen.

This pair of clownfish spawns regularly – about every two weeks – and is therefore often busy tending the brood. The nest of eggs is usually visible as a bright spot on the clay pot. When tending the brood, the male checks and removes the eggs affected by fungus. The female is the larger, dark-coloured animal and is more concerned with the defence of the territory. The sea anemone, with whom the two clownfish live in symbiosis, can move at a snail’s pace and is therefore not always found in the same place.

More information

Black anemonefish find new home in the German Oceanographic Museum more ...

Successful scientific rearing programme for clownfish more ...