Tuppil, B.A.U. and Mangadap, C.B. 2026. Performance Optimization of a Time-Controlled Solar-Powered Automatic Aquaculture Feeder for Freshwater Systems Based on Disc-Spreader Height and Rotational Speed. Isabela State University Linker: Journal of Engineering, Computing and Technology. 3, 1 (Jun. 2026), 24–43. DOI:https://doi.org/10.65141/ject.v3i1.n2.