C Cultivating tilapia fish in the form of fishing pond business has become an alternative for communities to enchance produktivity and estabilish small scale fish farming industries. The success of Tilafia fish farming relies on fish feeding process, including the quality of the feeding, an automatic fish feeding methods and the application of technology that prioritizes efficiency and environmental frendliness, the utilization pf fluid flow in an air channel is employed to distribute fish feed connected to an automation system. The fluid or air flowing in this air duct needs to be analysed to optimize the device's design due to the presence of various connections that effect fluid flow phonemena. This research uses a model object with the same dimensions, The research Method used to analyse the fluid phonemena occuring in the fish feeder channel is the 3D Computational Fluid Dynamics (CFD) simulation method using ANSYS software. The data analysed includes visual data in the form of vector-velocity plots, wall pressure contour plots, and particel tracae data. The result if this research are intended to conclude the fluid phonemena conditions that occure in the automatic fish feeder device pipeline as considerations for design and experimentation, including the ejected pellet velocity.