Fish will be your second source of food or income. If there is no fish, plants will not get the nutrients they need and your plants will not grow as fast as they could with the fish. It’s a no-brainer to include fish in your aquaponics system.
When you want to buy fish, a next question comes to mind;
What kind of fish species do I need in order for optimal growth or profit?
Well, of course we have the right answer to that specific problem. First, we have a fish guide which will help you to take the right decision on what kind of fish to choose. There will be links in the article to more details about each fish species mentioned in that article.