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  1. #1
    Mea-Culpa
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    Fish-farming questions and ideas.

    Hi TD members.

    I have started this thread in hope of that some of you might consider to try doing some fish-farming, it can be a nice hobby and doing the right things, it might also provide an little extra income.
    So if you have any questions or ideas, then please post away

    Cheers

    Dalts.
    The best argument against democracy is a five-minute conversation with the average voter.

    W.C.

  2. #2
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    blackgang's Avatar
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    OK, we are short of water for the last 4 or 5 years since the weather has changed, what do I do if I don't have enough water from rain to keep my pond full for my fishes no more??

  3. #3
    Mea-Culpa
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    Do you have ground-water source availible ?? If so that can be used, provided that then water in your pond dont drain out to fast. If it does then you are limited only to raise fish during the raining season or you can put a liner in your pond to hold the water, you then need a lower stocking density of-cause. There's ways around water-shortage, but it costs money.

  4. #4
    I am in Jail

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    ^^

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    Tiger Bay
    CharleyFarley's Avatar
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    I'll try to be concise.

    If the pond has stagnant water that is not easy to refresh, and is only 1.5 metres deep, what is the most productive fish to farm?

    Given the above , is there an easy and cheap way of oxygenating the water if necessary?

  6. #6
    Mea-Culpa
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    Quote Originally Posted by CharleyFarley
    If the pond has stagnant water that is not easy to refresh, and is only 1.5 metres deep, what is the most productive fish to farm?
    My choice would be cat-fish (plar-duc) they are very resistant to muddy low oxygen water, after they reach 40-50 grams, before that stage they need better quality water.


    Quote Originally Posted by CharleyFarley
    Given the above , is there an easy and cheap way of oxygenating the water if necessary?
    You can use a small pump to make a fountain, to get some movement and oxygen into the water.

  7. #7
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    We're getting a modest house built near Ubon, and are planning to put a fish pond in. Mainly just to supply friends & family, and for me to do a spot of fishing when I'm up there. Not much else to do, except drink.

  8. #8
    Have you got any cheese Thetyim's Avatar
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    Quote Originally Posted by Dalton
    My choice would be cat-fish
    What would be your second choice ?
    I don't want to do catfish

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    Quote Originally Posted by Thetyim
    What would be your second choice ? I don't want to do catfish
    Second choice would be Plar Nin, but that will involve some water-change, even if you use a pump to create oxygen, and you would need to keep a low stocking density (not more than 1 to 2 fish/m2)

  10. #10
    Have you got any cheese Thetyim's Avatar
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    Thanks, I am way overstocked then.

    The problem is that Pla Nin breed so fast
    Every couple of months an extra 300 fingerlings appear

  11. #11
    Mea-Culpa
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    Quote Originally Posted by Thetyim
    The problem is that Pla Nin breed so fast Every couple of months an extra 300 fingerlings appear
    You need to use sex-reversed Plar Nin, if not then they will only breed and not grow...

  12. #12
    Have you got any cheese Thetyim's Avatar
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    Well as I am way overstocked I could remove all the Pla Nin which would leave me about the correct number of TapTim.
    Do TapTim need to be sex reversed as well?

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    Tiger Bay
    CharleyFarley's Avatar
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    Up here in Chiang Rai, the cuurent liveweight price per kilo for catfish is 60 Baht

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    Quote Originally Posted by Dalton
    Do you have ground-water source availible ?? If so that can be used, provided that then water in your pond dont drain out to fast. If it does then you are limited only to raise fish during the raining season or you can put a liner in your pond to hold the water, you then need a lower stocking density of-cause. There's ways around water-shortage, but it costs money.
    No ground water available, Fil drilled down to damn near 600 meters and no water, I drilled down in another place 160 meters and no water.
    The pond was dug by the govt on family land to supply neighbors with irrigation water, but has since been abandoned and turned back to family, who still let folks get water for irrigation, and thats what happens to the water, but before the drought set in we still raised a few thousand fish a year, but now it just gets to damn low and drys up some years, plus Fil died.

  15. #15
    Mea-Culpa
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    Quote Originally Posted by Thetyim
    Well as I am way overstocked I could remove all the Pla Nin which would leave me about the correct number of TapTim. Do TapTim need to be sex reversed as well?
    No need to clean out the whole pond for fish, and the get your new fry or finger-lings from a source who supply sex-reversed Plar Nin and Tap-Tim (I can help you in that matter) There is no point messing around with the ones you have, since they are mixed sex..

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    Mea-Culpa
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    Quote Originally Posted by blackgang
    No ground water available, Fil drilled down to damn near 600 meters and no water, I drilled down in another place 160 meters and no water. The pond was dug by the govt on family land to supply neighbors with irrigation water, but has since been abandoned and turned back to family, who still let folks get water for irrigation, and thats what happens to the water, but before the drought set in we still raised a few thousand fish a year, but now it just gets to damn low and drys up some years, plus Fil died.
    Tough enviroment for fish-farming.......Not any easy cheap solution to that problem, cant fight against mother-nature...

  17. #17
    Mea-Culpa
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    Quote Originally Posted by CharleyFarley
    Up here in Chiang Rai, the cuurent liveweight price per kilo for catfish is 60 Baht
    What size is that ??

  18. #18
    Have you got any cheese Thetyim's Avatar
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    At what age/size is the sex reversal done?
    I am pissed off that none of the "thai experts" that I spoke to told me about this.
    How can I tell if they are all male or not ?
    Does the price increase ?

  19. #19
    Mea-Culpa
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    Quote Originally Posted by Thetyim
    At what age/size is the sex reversal done?
    From day 1 and will end when they are 23 to 25 days old.


    Quote Originally Posted by Thetyim
    I am pissed off that none of the "thai experts" that I spoke to told me about this.
    What to exspect....How much did you pay per fish ??


    Quote Originally Posted by Thetyim
    How can I tell if they are all male or not ? Does the price increase ?
    You cant at that age, you'll have to trust your source. The price for male fry plar Nin is around 32-34 satang and 42 for Tap-Tim.

  20. #20
    Tiger Bay
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    ^^I'll double check in town 2moro

  21. #21
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    is sex reversal pleasurable to eiter the fish or the reverser?

  22. #22
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    Unhappy

    I had thought about doing this using 4 x 4 metre tanks split in half so that you can get to the fish easier. I though 4 of those in a row on a small downslope so that the water flows into each tank and using the first tank as a filter and pumping the dirty water back into the filyer tank.
    I have access to the moo ban water from the government but I think the tanks will need topping up on a daily basis.
    Do you think that would work?
    I have done some drawings in excel but due to my low number of posts I am not allowed to add attachments. Sorry.

  23. #23
    Mea-Culpa
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    Quote Originally Posted by obsidian
    is sex reversal pleasurable to eiter the fish or the reverser?
    I can hook you up, if you wanna try...

  24. #24
    Mea-Culpa
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    Quote Originally Posted by crabfat
    I had thought about doing this using 4 x 4 metre tanks split in half so that you can get to the fish easier. I though 4 of those in a row on a small downslope so that the water flows into each tank and using the first tank as a filter and pumping the dirty water back into the filyer tank. I have access to the moo ban water from the government but I think the tanks will need topping up on a daily basis. Do you think that would work? I have done some drawings in excel but due to my low number of posts I am not allowed to add attachments. Sorry.
    You have the right idea, for small recirculation system, try to have a look on the thread called "my farm used for final project" there's some pics of the setup I have. You can email your drawings to me, I'll send you a PM wit my mail.

    Cheers

  25. #25
    Tiger Bay
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    I mixed up wholesale and retail prices....duuhhh

    They normally buy/sell them at 100 gms plus, but if they get to beer bottle size the price begins to drop.

    Our fish behave like Pirahnas at feeding time now, one more month and off to market we go.

    Next to Nong Luang lake south of Wiang Chai there is a fisheries centre we used for advice years ago re sex reversed Pla nin and Tap tim. We bought 1000 pink fingerlings and a few weeks later they all suddenly disappeared from our pond.

    I know all about walking catfish but nothing about walking fucking tilapia
    "The supreme irony of life is that hardly anyone gets out of it alive."

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