**Affordable Aquaculture: Raising Catfish in 200-Liter Tanks** Aquaculture, the practice of breeding, raising, and harvesting fish in controlled environments, has become a vital source of food production globally. Among the various methods, using 200-liter tanks for raising catfish stands out as an affordable and accessible option for small-scale farmers and hobbyists. **1. Introduction to Tank-Based Aquaculture** Tank-based aquaculture involves the use of manageable and cost-effective 200-liter