Jotham79 Posted August 28, 2016 Share Posted August 28, 2016 I would like to have a few plastic tanks (approximately 1000 lit) to raise Tilapia and maybe Pla Let at a max density of 50 kg per cubic meter. I will have aeration; and have a solid waste filter and bio filter similar to the ones in these links: https://www.youtube.com/watch?v=N45FP6ctLes? https://www.youtube.com/watch?v=RVzNcU8EnwU I am wondering what kind of maintenance will need to do and how often to do things like checking for ammonia. Any help would be appreciated. cheers Link to comment Share on other sites More sharing options...
jmicaelk Posted August 29, 2016 Share Posted August 29, 2016 Hi, where did you find your tanks ?? and how much you paid for them ?? You should be able to go up to 60-66 kg/ cubic meter Regards Micael Link to comment Share on other sites More sharing options...
Jotham79 Posted August 30, 2016 Author Share Posted August 30, 2016 I bought one today at Thai Watsadu. It is circular with a 1.4 meter diameter and 45 cm depth. Rated for 800 liters, but will probably be lucky to get 700. It was 2900 which is a little pricey. They had several sizes and shapes. Link to comment Share on other sites More sharing options...
Pseacraft Posted August 30, 2016 Share Posted August 30, 2016 You may want to start a dialog with this canuck connected in the links. He was been dabbling with catfish in similar tank me thinks: http://www.mythaihomestead.com/ Link to comment Share on other sites More sharing options...
Jotham79 Posted September 3, 2016 Author Share Posted September 3, 2016 I used to watch hi videos a lot when we were doing frogs. He has a lot of fun but is not really as concerned with expenses as I need to be. I have the same tank as in the video. He is running about 60 Pla Duk which probably total around 20 kg and he has some water issues. Catfish can breath air so O2 is not much of an issue and they are several times more tolerant of ammonia. I don't think 20 kg of tilapia would make it in his set up. I will have a larger pump that should recirculate all water every 15 minutes. My swirl filter will be 2 times as big and my bio filter will be 4 times as big. I will also have a small pump that will provide aeration. I am still not sure that will handle 50 kg of tilapia (60kg per cubic meter) but will find out. I need to find some test kits for water quality too. Link to comment Share on other sites More sharing options...
Smithson Posted September 9, 2016 Share Posted September 9, 2016 I am doing aquaponics in 1,000 liter IBC. The plants are doing well, but the fish are slow despite plenty of food and decent water quality. I've been told it could be the small tanks.Water test kits are available from Thailand Aquaponics in Samut Prakarn. Google for the address.Sent from my i-mobile IQ II using Tapatalk Link to comment Share on other sites More sharing options...
jmicaelk Posted September 14, 2016 Share Posted September 14, 2016 Thanks Jotham79, I saw them there as well and found a company online that sell tanks up to 1600 L, same you can get at ThaiWatsadu for about 5500 B Link to comment Share on other sites More sharing options...
CLW Posted September 20, 2016 Share Posted September 20, 2016 Anyone knows the price for a new 1,000 Liter IBC?ThanksGesendet von meinem i-mobile IQ II mit Tapatalk Link to comment Share on other sites More sharing options...
Smithson Posted September 21, 2016 Share Posted September 21, 2016 Anyone knows the price for a new 1,000 Liter IBC?ThanksGesendet von meinem i-mobile IQ II mit TapatalkNo, but second hand ones with single use can be found, the label on the side shows what they once contained.Sent from my i-mobile IQ II using Tapatalk Link to comment Share on other sites More sharing options...
Smithson Posted September 21, 2016 Share Posted September 21, 2016 No, but second hand ones with single use can be found, the label on the side shows what they once contained.Sent from my i-mobile IQ II using TapatalkPrice is 2.5k upSent from my i-mobile IQ II using Tapatalk Link to comment Share on other sites More sharing options...
CLW Posted September 21, 2016 Share Posted September 21, 2016 Price is 2.5k upSent from my i-mobile IQ II using TapatalkThanks Link to comment Share on other sites More sharing options...
CLW Posted September 23, 2016 Share Posted September 23, 2016 What do you guys feed the Tilapia? Link to comment Share on other sites More sharing options...
Smithson Posted October 3, 2016 Share Posted October 3, 2016 I am feeding pellets, but a lot of people use the 'green water method'.Sent from my i-mobile IQ II using Tapatalk Link to comment Share on other sites More sharing options...
CLW Posted October 3, 2016 Share Posted October 3, 2016 If you use green water isn't there the risk the fish meat gets the typical off flavour? Link to comment Share on other sites More sharing options...
Smithson Posted October 3, 2016 Share Posted October 3, 2016 I'm really not sure, but I think a large percentage of market fish are raised in green water.Sent from my i-mobile IQ II using Tapatalk Link to comment Share on other sites More sharing options...
CLW Posted October 4, 2016 Share Posted October 4, 2016 I'm really not sure, but I think a large percentage of market fish are raised in green water.Sent from my i-mobile IQ II using TapatalkI'm not sure either. But I heard if you raise them in green water in natural pond or river, when you put them into a cage (Happa) to prevent eating from the ground, they don't develop that off taste. Link to comment Share on other sites More sharing options...
Jotham79 Posted October 5, 2016 Author Share Posted October 5, 2016 Sorry I've been slow. I will be using a purpose made tilapia feed starting with 32% protein. I can't really use the green water method in a small tank. The "Green Water Method" basically has the fish getting most of their food from the algae in the water. Fertilizer is added, but there is a limit on the carrying capacity which depends on the surface area that sunlight hits. It also takes a little longer for the fish to grow out and some feed may be given. As I understand most tilapia are not green water fish. A lot of tilapia are raised in floating nets in rivers and large lakes and are fed intensively. I know some is done in Phitsanoluk, up at Nong Khai, and around Nonthiburi . Some are raised in lakes with aeration and intensive feeding, but to be sure there are some raised green water. On my farm I use green water (small scale) and do not use nets. My fish taste better than most I have had through the local market. I think over all water quality and amount of silt in the water makes a bigger difference in the taste. Cheers Link to comment Share on other sites More sharing options...
canuckamuck Posted October 5, 2016 Share Posted October 5, 2016 Please keep us updated on your progress, and especially rate of growth if possible. Also, what brand and number is the Tilapia feed you mentioned? Link to comment Share on other sites More sharing options...
Jotham79 Posted October 19, 2016 Author Share Posted October 19, 2016 Well I finally got my tank up and running. I started with 300 fry and a very small pellet feed that I think is 40% protein. It will take the bio filter a while to work so I think I will take half of the fry out to the farm and to water changes for a few weeks. Till not happy with my pumps, but will play with them a while. Here are some photos: Full set up Tank with pumps off Tank with the pumps on Bio filter Swirl filter Link to comment Share on other sites More sharing options...
ozzydom Posted October 19, 2016 Share Posted October 19, 2016 On 10/5/2016 at 7:31 PM, Jotham79 said: Sorry I've been slow. I will be using a purpose made tilapia feed starting with 32% protein. I can't really use the green water method in a small tank. The "Green Water Method" basically has the fish getting most of their food from the algae in the water. Fertilizer is added, but there is a limit on the carrying capacity which depends on the surface area that sunlight hits. It also takes a little longer for the fish to grow out and some feed may be given. As I understand most tilapia are not green water fish. A lot of tilapia are raised in floating nets in rivers and large lakes and are fed intensively. I know some is done in Phitsanoluk, up at Nong Khai, and around Nonthiburi . Some are raised in lakes with aeration and intensive feeding, but to be sure there are some raised green water. On my farm I use green water (small scale) and do not use nets. My fish taste better than most I have had through the local market. I think over all water quality and amount of silt in the water makes a bigger difference in the taste. Cheers With Tilapia farming,nothing is set in stone. There are so many variables to try to take into account,and then there are the uncontrollable factors such as water quality and availablity, weather conditions,feed costs ,local economic conditions (which have a big say in your potential price and market). We have been farming Pla Nin in 5 rai of ponds for near 10 years,(green water with some propriety feeds)and have been ,moderately profitable BUT the past year was an utter disaster. The prolonged drought and hot weather,along with many of the rice growers putting in multiple crops meant that they pumped the Klong (our water source )dry. This led to extremely high water temperatures and consequent high nitrate levels and disease. We wrote last year off ,and three weeks ago we received our new seasons fry which we placed in our nursery pond to grow to fingerlings prior to moving to grow out ponds, meantime We treated the ponds to get the phytoplankton levels up and lo and behold ,two weeks ago we copped the mother of downpours which culminated in the biggest flood in living memory and all the fish and green water went down the Klong. So this week we start again, but the high cost of feed has necessitated a change in strategy for this season. This game is not for the faint hearted Link to comment Share on other sites More sharing options...
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