Jade Perch on the other hand are an IDEAL fish for a RAS. They are the perfect beginners fish, almost bullet proof. On the down side, they prefer warm water.
Silver perch top, jade perch bottom showing the different body shape of the two species.
Catfish, (Tandanus tandanus) are a very useful fish to include in your system. They are scavengers and that will eat any uneaten food or waste material left by other fish, but as they grow they may also eat small fish, so caution should be used when picking tank mates for them. As they forage on the bottom, they can keep the bottom of your ponds stirred up. Temperature tolerance is wide. You only need a few in each tank. Not much information is available on their growth rates but with more people adding a few to their systems it won’t take long to build up some knowledge. The big bonus is, they too are excellent on the table. Their flesh is white and delicate. When you are ready to eat them just humanely dispatch them. Before gutting and heading them, pour hot water over the skin. Then the skin can easily be peeled off. The protective coating of mucus will not be slippery once the hot water has been applied. Cook them a bit longer than perch to produce the best texture. Undercooked, they can be a bit too moist.
Murray cod are a fast growing fish. They would be he fastest growing of all the fish available from Aussie Fish Aquatics. When you consider their full genetic potential it’s not surprising. Compared to silver perch and jade perch, which have a genetic potential of only a few kilos, Murray cod have the genetic potential to reach around 50 kilos ! This means a 1kg fish, IS JUST A BABY ! They also have the best temperature range for survival and growing. They are only suited for grow out in tanks as they need to be kept at high density to suppress territorial behaviour. They are PERFECT table fish ! Fingerlings are available for a brief time from late November. You can have your name placed on our list to be advised as soon as they become available
Sleepy cod are an excellent table fish. This species is best suited to tank culture. Grow-out in ponds has not been very successful, however tank grow out has worked very well. Some commercial growers have experienced slow growth, however, others report quite acceptable growth rates. This species is a little more challenging because of the need to keep them crowded, and feeding. They need warm water.
COMBINING THE GROWING OF PLANTS WITH AQUATIC ANIMALS, in other words, FISH.
The idea of growing a few veggies in the back yard is nothing new. It’s been around as long as the back yard. In fact, growing “veggies” probably resulted in the invention of the back yard. No longer hunter foragers, humans became farmers. These days growing plants in the back yard is done, more for love than necessity. (Perhaps during this difficult time, it’s more of a necessity.) The opportunity has now presented itself to actually make extra use of the water we use to grow the “veggies”.
If you already know what I am talking about, and just want to get on with it and order some fish, we can send fish to your door, almost anywhere in Australia, with about 100 fingerlings in each box.
We fed the fish just as we had been doing for months. After the water passed through the filter, and before it went back to the fish tank, it went through the vegitable tank.