Step 4: Clean the Bloodline Although the fish’s guts are now gone, there’s one more job to do. You’ll notice a black line running along the fish’s spine covered by a thin membrane.

Learn the art of filleting freshwater fish with our step-by-step guide, ensuring you get the most out of your catch. Whether ...

A strong filter keeps the water clean, reduces harmful toxins, and helps prevent common fish illnesses. 3. Maintain Clean and Balanced Water Clean water is the foundation of goldfish health.