FishGuide™ is a convenient accessory providing for correct needle positionning while injecting fishes. Fitting syringes 167/187 models, it is most helpful in all fish farms. The accessory is supplied in three sizes: 15 mm, 25 mm and 45 mm and do not require any tool to be installed and removed. It can be positionned over 360° on the syringe. The two large copper grips facilitate fish positionning and their angle can be enlarged according to fish size.