The fish collector is used in type 1-3 fish farms with founded canals. The fish are caught with the fish collector, which runs from one side of the tank, until the fish stand so close that they are ready to be with a mini digger or the like. The fish scraper is made from a rust proof frame, which is mounted with a net or a perforated plate.
Sealings against sides and bottom are made of rubber seal. Fish collectors are driven forward in the tank by a driving wheel, which runs on the tank bottom. The driving wheel is drawn through a chain drive by a gear motor.