Anybody keep fish in tanks for food

[Prepper1]

I kept Aussie yabbies in a heated tank.
When you vary the temp up and down it simulates their natural breeding pattern back home and they mate...
But boy oh boy when they're born boy do you need a big pond...
theres thousands of babies.
good eating too.
Bush tucker man Les Hiddins love em.

[SecretPrepper]

[NorthernRaider]

Thanks SP, your findings match my own I used to breed Carp, Koi and Goldfish and found that if left outdoors over winter they really needed a pond set at least 5 ft deep into the ground for the fish to survive it stopped the fish from suffering tissue damage, I ended keeping mine in insulated water tanks in the garage.

[NorthernRaider]

[BFG Central]

Iv got Tilapi in a 4 ft fish tank in the kitchen at the moment.
They are going into an Aquaponics system later this year.
Tilapia are the third largest farmed fish behind salmon and tuna world wide.
Yes they need to be kept in heated water as they are tropical fish but the plan is to build a rocket stove mass heater to heat the water.
The water acts as the thermal mass and the tank and grow beds are insulated.
Its my project for this Autumn.

[NorthernRaider]

I'm told they hope to gow Tilapia on a commercial scale at the new Eco village up Westgate in Weardale if the village goes ahead, apparently they found some geothermal water sources to tap into.