Tab Tim (Tilapia) in concrete ponds

[canuckamuck]

Hi I am in Thailand and I used to be quite an aquarium nut and now I have returned to raising fish. Although this time around I hope to raise them commercially. I have 4 concrete tanks (usually holding 6000 liters each) and a natural pond, but at the moment I am only using the tanks. I only have one tank with fish at the moment which has about 400 Tab Tim. They will be heading to the pond soon and I will get a few thousand more fry for the tanks.

Although this forum appears to be for pet fish, I do think that the information I can glean from here will be useful. So I have uploaded a few pics of my setup, and I welcome any questions.

http://i694.photobucket.com/albums/vv309/mr_phileas_fogg/Fish/IMG_7538_zpse5353df4.jpg
http://i694.photobucket.com/albums/vv309/mr_phileas_fogg/Fish/IMG_7550_zps6f785e25.jpg
http://i694.photobucket.com/albums/vv309/mr_phileas_fogg/Fish/IMG_7526_zpsa4e410c6.jpg
http://i694.photobucket.com/albums/vv309/mr_phileas_fogg/Fish/IMG_7517_zps57572806.jpg

[Lady Hobbs]

Cement ponds is how many of our farm raised tropical fish are kept here. I see no problem with it. Nice ponds.

[madagascariensis]

Deep fry with garlic and serve with parsley!
อร่อย มาก!

[canuckamuck]

Deep fry with garlic and serve with parsley!
อร่อย มาก!

Yes, but not yet, they are only about 10cm at the moment.
We serve with lots of hot chilli peppers and barbecued in a salt crust.

[GuppyAteMyDog]

i Grill whole and serve with a wedge of lime
Btw what is your feeding rate ? i feed a 30%cp floating feed at 20 % biomass daily and vegetable waste on weekends

[canuckamuck]

I had to think about your post, I thought you were feeding them biomass, but I realize now you mean the fish as the biomass.:doh:

I feed 32% protein content pellets, and they get rice bran in a fine powdery form. I don't have vegetable waste available because the pigs get it.

I feed them the way I have fed all my past fish, I watch to see how much they eat in a couple of minutes and then give them a little extra. They get fed four times a day. I can run fresh water in continually so I don't get concerned with over feeding. I know I should calculate the biomass, but they are doing fine under this system.

I have now moved the original batch of Tab Tim to the big pond, and I have picked up 3000 new fry.

here is a pic
http://i694.photobucket.com/albums/vv309/mr_phileas_fogg/Fish/IMG_7646.jpg

And here is the pond; It is a work in progress
http://i694.photobucket.com/albums/vv309/mr_phileas_fogg/Fish/IMG_7663.jpg