Aquaristics

The underwater world of an aquarium offers lots of surprises, e.g. during courtship. Especially ornamental fish males really show off with dedication, perseverance and persuasive power. As manifold as the fish in the aquarium are their ways of making love. With some kinds it even gets really noisy. 'Under water especially the males demonstrate how strong their feelings are,' explains Dr. Jörg Vierke, biologist and expert author. 'A very good example are livebearing fish such as guppies: When the small fish are ready to mate, the male f..

Noisy games like musical chairs, a New Year's Eve party or family music for Christmas: can this disturb our tropical fish? "Sudden noise, like e.g. fireworks, or very loud bass music disturb fish in the same way that they disturb dogs and cats", says expert for tropical fish and biologist Dr. Jörg Vierke. " Fish are certainly not deaf, as is often assumed. Just the opposite is true, many fish communicate with sounds", he continues. Fish have an internal ear like all vertebrates and absorb sounds with the whole surface of their bodies..