We've written extensively about the aquaponics setup at Better Farm—from the budget to the science behind it to the crops we're growing. But one of the biggest (if not the biggest) components to a healthy aquaponics setup is your selection of fish. So today we're going beneath the surface to check in with our fishy friends.
As a general rule, warm, fresh water, fish and leafy crops such as lettuce and herbs will do the best; as will your dirtiest, most durable fish (our opinion: goldfish and minnows). In a system heavily stocked with fish, you may have luck with fruiting plants such as tomatoes and peppers.
Fish regularly raised in aquaponics with good results (please note: all "edible" fish should be raised in a tank that holds at least 40 gallons of water):
- large mouth bass
- fancy goldfish
- various ornamental fish such as angelfish, guppies, tetras, swordfish, mollies
- blue gill/breem
- silver perch, golden perch
- yellow perch
- Large mouth Bass
- any leafy lettuce
- pak choi
- most common house plants
Because we have a 70-gallon tank, there's space to experiment with tillapia or other trout; so long as we account for the space needed by mature fish (roughly one gallon per inch of fish). Our ratio of fish-to-water-to-plants has worked swimmingly so far; stay tuned as we expand and experiment with new setups, more setups, and different fish.