The sold are about 1.5-3cm in size. Racles reach a maximum size of 5cm. They are not particularly demanding, they prefer higher pH and medium water, the temperature range is 15-28 degrees. Raczki do not have destructive tendencies when it comes to plants and are not aggressive in relation to other residents in responded aquariums. In the aquarium, they should provide hiding places in the form of roots, tubes or grottors.