Dorsal spines (total): 1 - 1; Dorsal soft rays (total):
4 - 5; Anal spines: 1;Anal soft rays: 90 –
95. Caudal fin with 17 rays. Occurs mainly in large
lakes and rivers, though occasionally enters brackish
water in the Baltic and Black Seas. Found in deep
waters of dams constructed on the lower reaches
of rivers. Known to feed at night on ducks, voles,
crayfish and small fishes. Spawns in the salt water
of the Aral Sea (at Kulandy). Aquarium Care:
You can of course keep small Wels Catfish in an aquarium
where feeding is no problem with dim lighting and
a large external filter and they will eat anything
(just keep an eye on your household cat),
but where would it go after outgrowing your tank as
Public Aquariums have probably their full quota. As
they are very predatory, you should never keep it
together with smaller fish, because especially the
small ones can swallow very big things. You should
also get it some kind of shelter like a root or some
kind of tube. Diet: You can actually
keep a Wels in an aquarium as long as it is small
enough, but you should NOT give it normal catfish
food which contains a lot of plant-material. S.
glanis is a highly carnivorous predator and will
eat a lot of things. Worms are very good, as well
as, dependent on its size, insect larvae. Crushed
snails also work, but if they get bigger you should
mainly feed them with fish. They will even eat dead
fish or chunks of it, and I have often read that they
even eat normal meat and squid in aquariums, but over
a longer time this is possibly not that good.
Europe and Asia:Russia, Central & Eastern Europe. Germany,
upper Rhineand eastwards to the
Black and Caspian Seas. Introduced to other waters
for fishing purposes such as the River Ebro in Spain.
Bühler, Markus.(pers. comm. Oct. 2008). Froese, R. and D. Pauly.
Editors. 2008. FishBase. World Wide Web electronic
publication. www.fishbase.org, version (11/2008).