sera guide - Shrimps and crayfish

Light Shrimps and crayfish have no special requirements concerning light. Therefore, hoods with several lamps allow to choose one lamp that specially takes the require- ments of the plants into account, e.g. the sera plant color. We recommend the sera tropic sun in case only one lamp is used. Cover Heater Both crayfish and shrimps require a cover on top of the aquarium that prevents them from escaping, since they like to explore their closer surroundings and might leave the aquarium to do so. Oxygen supply Just as in the fast flowing brooks of the natural habitats of these animals, high oxy- gen levels are also required in the aquarium water, as this is important for both exuvia- tion and reproduction. It is achieved with an additional pump apart from the filter, e.g. the sera air diaphragm pump in connec- tion with an air stone from the sera air set. Many shrimps originate from subtropical climate zones. Seasonal temperature varia- tions are therefore natural and can even increase breeding success. The optimal temperature range is between 19 and 25°C (66 – 77°F), e.g. for Tiger, Bumblebee and Bee shrimps. Amano shrimps even feel well between 10 and 30°C (50 – 86°F). Most cray- fish require temperatures between 20 and 27°C (68 – 80°F). The animals have optimal growth rates at about 25°C (77°F). The sera aquarium heater thermostat is recommended for heating up the aquarium. 1717