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Joined: Mar 2014
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Joined: Mar 2014
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I have a 1/4 acre pond I'm going to use for raising Tilapia next year - I recently pumped it down and seined as many blue gill out as I could. I still have about a 20' x 60' area that has about 3' water in it. I still see some signs of blue gill. What is the best way to finish killing the pond now. It will fill back up over the winter and then i'll be ready to stock and feed tilapia next spring
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Joined: Jun 2007
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Ambassador Field Correspondent Hall of Fame Lunker
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Ambassador Field Correspondent Hall of Fame Lunker
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Add about 400-800 pounds of HYDRATED Lime till the water turns gin clear. Use your trash pump to pump water into a barrel or stock tank to circulate, dissolve and spread the hydrated lime quickly.
This will raise your pH to 12 or higher, very rapidly, shocking and killing the fish. residual high pH will burn the gills of any fish not killed right away, even mud dwelling fish if there are any...
In about 2 weeks, the pH will drop back to a safe stocking level, as the H lime action is short lived. You will also be left with residual calcium that will benefit future fish growth.
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Joined: Apr 2002
Posts: 15,146 Likes: 488
Moderator Ambassador Field Correspondent Lunker
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Moderator Ambassador Field Correspondent Lunker
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Why not pump it down more to closer to 6"-8" deep then use less hydrated lime?.
aka Pond Doctor & Dr. Perca Read Pond Boss Magazine - America's Journal of Pond Management
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Joined: Aug 2002
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Hall of Fame Lunker
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Hall of Fame Lunker
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That's what I do when I drain my hatchery ponds every year. Actually I drain them down to almost nothing and shovel in lime.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
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Joined: Jun 2007
Posts: 7,099 Likes: 23
Ambassador Field Correspondent Hall of Fame Lunker
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Ambassador Field Correspondent Hall of Fame Lunker
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As Bill mentioned, the less water, the less Hydrated Lime needed. Also, as Cecil said, shoveling it in will work also, though it will not raise the pH as rapidly throughout the water left.
If there is ANY chance you have common Carp or Bullhead Catfish in the current pond, broadcast spread some Hydrated lime on all wet areas too.
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Joined: Jan 2012
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Joined: Jan 2012
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Liquid Pool Shock from the pool supply store works too. But has its down sides too.
Goofing off is a slang term for engaging in recreation or an idle pastime while obligations of work or society are neglected........... Wikipedia
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Joined: Apr 2002
Posts: 15,146 Likes: 488
Moderator Ambassador Field Correspondent Lunker
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Moderator Ambassador Field Correspondent Lunker
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Be careful of adding chlorine based products to the pond because they will create trihalomethane by-productss which are bioaccumulative and do not rapidly decompose in the environment.
aka Pond Doctor & Dr. Perca Read Pond Boss Magazine - America's Journal of Pond Management
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