Importance of Aquaponics Fish
In an aquaponic system, the fish provides nutrients for the plants and if you are growing edible fish it can provide protein for you and your family. Raising fish in an aquaponic system is much simple compared to raising them in an aquarium, as long as you follow the simple guidelines.
Choosing the Right Aquaponics Fish
There are different varieties of aquaponic fish to choose from and you must consider your local climate to choose the right one. In cold climates, you can choose a Rainbow Trout and during summer or warm season raising Barramundi or Jade Perch can be the best option.
There are a few factors to consider before arriving to a final decision to what type of fish species you want to grow. First, is to consider what type of fish you plan to grow, either an edible fish or ornamental fish. Do you prefer a fish that can grow the whole year round? Another factor to consider is what type of fish is available in the market, since you need to get your brood stock in the first place such as Tilapia (for edible fish).
To help you out, here is a list of useful aquaponics fish species:
Barramundi that is grown in an aquaponic system has an exceptionally clean, crisp taste and are commonly grown during the warm season. Usually, growers buy mature stock to be able to harvest larger fish in the end of the growing season wherein it is also considered as one of the majestic aquatic species that are edible.
From the different variety of catfish, the best suited for aquaponics is the Channel Catfish that is widely farmed type of fish in the US. Channel catfish can be quickly grown and they do have a better food conversion ratio compared to other fish.
Carp is one of the world’s most cultured fish and commonly grown in Asia. It has the capability to reproduce and quickly adapt in many areas in the world. There are various species of carp that are suited to aquaponics.
Goldfish can be considered as an aquaponic fish and can be a great addition to the aquaponic system. They usually breed in a tank with plant covering.
Jade Perch is an Australian fish that grows during the warm season and they consume an omnivorous diet. They have a high level of omega 3 oil compared to other fish species in the world. Due to this, some growers breed the oil out of them since some people don’t want fish with high oil content.
Koi belongs to the family group of Carps and they are commonly grown in Asian countries. For Koi lovers, this fish can be a great proposition as a stocking fish in your aquaponic system.
Murray Cod is one of the best aquaponic fish that can be raised in recirculating aquaculture system and they grow quickly. But they must be kept in high stocking densities and be well fed otherwise they tend to eat each other. In their normal habitat, they tend to grow in enormous sizes.
Silver perch fingerlings grow slowly from 12 to 18 months and they can grow well in a variety of conditions and within a wide temperature range. Commonly, they are omnivorous and loves to eat green scraps, Duckweed and Azolla.
Tilapia is the second most cultured fish throughout the world and one of the best aquaponics fish that growers love. It is easy to breed this type of fish and they are fast growing and can withstand even the worst water condition. They do have an omnivorous diet and must be grown in warm water.
Trouts grows faster compared to other aquaponics fish and commonly they live in water temperatures between 10 to 20 degrees Celsius.
Other Aquaponics Fish Species
Other fish species that are grown in aquaponics are Bluegill that are commonly grown in the US and Sleepy Cod that are available in Australia. Other fish varieties that can be grown in fresh water are mussels, prawns, crayfish, Redclaw, Marron and Crustaceans such as Yabbies.
Mussels are a filter-feeder and helps clean the water while Yabbies breed readily, as long as they are grown in the right environment and have the correct water temperature and long daylight hours.