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#35577 06/09/06 09:50 PM
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I web page would hope for some improvment after 4 wks and 7 lbs of tilapia in a 1/2 acre pond

#35578 06/10/06 05:19 AM
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LoopTech,
In spite of all the “hoopla” about tilapia, like Bill Cody says, “it all depends”.

There have been repeatedly broad sweeping statements on the forum about the merits of tilapia that have been ill advised.

Do you have a heavy infestation of pondweed or other aquatic vegetation?
Based on my experience, FA becomes imbedded in the pondweed and tilapia are ineffective in removing.

Our pond looked similar to yours last year but after 7 grass carp/acre were introduced the pondweed disappeared and the tilapia did their job.

The same source will tell you that you can’t stock grass carp in the hot weather months but this information is incorrect in some situations – it all depends.

Give Todd Overton of Overton Fisheries a call – his advice is worth listening to.

By the way, this year the tilapia and grass carp have controlled both pondweed and FA.
Tilapia area amazing fish used under the correct conditions.

George Glazener
N.E. Texas

#35579 06/10/06 06:28 AM
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No pond weeds are present..Just F.A.

#35580 06/10/06 07:01 AM
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Tell us more about your pond - water depth - water quality (chemistry) - aeration - etc?

I took another look at your photo - do I see cow tracks in the upper end of your pond?
Perhaps excess nutrients?

I share your concerns - with the continuing drought FA is a big problem.

I'm sure someone on the forum can help.
Good luck

#35581 06/10/06 07:47 AM
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LoopTech,

A couple of questions on your situation and then a friendly neighbor question.

Is this the first year with Tilapia?

The reason I ask is that in my experience, it takes a good part of the summer for them to get ahead of an algae infestation in the first year. In my own case, in my first and second years with Tilapia, I found it beneficial to use Cutrine Plus in the early spring before Tilapia stocking to help the Tilapia "get on top of" the algae. Since those early years, however, I haven't had to use chemicals.

Second question....are you artificially feeding fish in that pond?

Artificial feed, according to SRAC and my own experience, can reduce the amount of natural food (i.e. algae) consumption by Tilapia by 50 to 70 %. I have definitely seen at least a 50% reduction in efficiency in a pond(mine) artificially fed. In addition, to reducing the Tilapia's effectiveness, artificial feed can increase nutrients which feeds the algae further. Before someone screams, I'm not putting down artificial feeding, in this case, simply stating some effects it can have on Tilapia effectiveness.

A comment, our very hot dry weather enhances algae production. Part of that is due to having the same amount of nutrients available in a smaller amont of water, i.e. raising the overall % of nutrients available to FA. Also, for some reason, FA disappears in my ponds after a good rain....which we don't seem to have any of lately. I'm sure the pros can give other reasons as well but hot dry weather seems to encourage algae production.

Like anything else, no one is saying (certainly not me) that Tilapia are 100% guranteed to cure all your problems. However, if you set up good conditions for their success, your individual probability of success improves. My own experiences with Tilapia, IMO, have been substantially improved, by not just throwing them in the pond, but by taking some steps to help them be successful. They have paid me back many fold, and I highly recommend them. I will say to anyone that Tilapia represent the best pond management tool available to pond meisters today.

I noticed you are into ranching and in East Texas. Wondering how your grass is doing and how hay production is shaping up for this year? I'm very concerned about getting adequate hay production this year.

#35582 06/10/06 09:01 AM
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This is my second year with tilapia.. and I was very happy with the results last year
No is the answer of artificially feeding fish

My hay production is running about 50% of a normal year.. One saving grace is, I was able to carry over 40 rolls from a couple of years ago(storage in old poultry House).. If we could only get a decent rain.. My situation would be much improved..

#35583 06/10/06 09:11 AM
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LoopTech,

Then my comment would be to be patient. Four weeks isn't long in these adverse conditions. Unlike some, I have not seen instant effects of Tilapia algae control...it takes time, and as I mentioned above, it took most of the season for me initially.

Those 40 rolls may be worth their weight in gold in another couple of months....and since you stored them inside, even more so.

#35584 06/10/06 09:23 AM
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I was looking for some erosion hay to do a muddy pond experiment. I found that it all got fed last year.

Regarding the tilapia, it reminds me of my grass carp. At the end of the first summer, I couldn't see any pondweed reduction. Then, the next year, there was no pondweed left.

They keep working just like dry rot and compound interest.


It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
#35585 06/10/06 10:36 AM
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 Quote:
Originally posted by Dave Davidson1:
They keep working just like dry rot and compound interest.
Albert Einstien said the most powerful force in the universe is compound interest...but then he didn't know about ponds and Tilapia. \:D

#35586 06/10/06 08:53 PM
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Folks.. I got faith.. They will work..

#35587 06/14/06 11:05 PM
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I Still have hope.. Here is the lasted Jpg

#35588 06/14/06 11:20 PM
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Looptech,

Is your water dyed?


If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.






#35589 06/15/06 06:12 AM
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Nope.. I think that was just the sun angle

#35590 06/15/06 07:49 AM
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Looptech, it's a problem of scale. You have 7 pounds of tilapia and tons of FA. Even if each fish always ate 2x its weight in FA per day, it would still take weeks (and a couple of spawns) to see any significant results. I think stocking rates for major infestations needs to be a lot higher than rates for prevention and maintenance.

#35591 06/15/06 08:02 AM
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That's still a bunch of algae.

LoopTech,

None of my business and certainly not wanting to offend you but trying to help...I noticed a couple of trees on the inside banks of your pond. In addition to sucking up hundreds of gallons a year, they may cause you some dam integrity issues at some point.

#35592 06/15/06 08:45 AM
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 Quote:
Originally posted by Meadowlark:
That's still a bunch of algae.

LoopTech,

None of my business and certainly not wanting to offend you but trying to help...I noticed a couple of trees on the inside banks of your pond. In addition to sucking up hundreds of gallons a year, they may cause you some dam integrity issues at some point.
Not to mention they add leaves that fuel algae growth.


If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.






#35593 06/15/06 08:47 AM
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You're correct on the trees.. Those 2 Catawba trees came up as volunters.. One is dying.. Soo my plans are to cut them down

#35594 06/15/06 08:53 AM
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 Quote:
Originally posted by LoopTech:
You're correct on the trees.. Those 2 Catawba trees came up as volunters.. One is dying.. Soo my plans are to cut them down
They could cause worse problems dead eventually. Once they die and the roots decompose they may leave void areas.


If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.






#35595 06/15/06 01:32 PM
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It appears as though most of the heavy infestation is close to shore. Maybe some manual harvesting with a stiff rake would help get things moving. Re: catalpa trees, they should be getting worms on them if they are going to. The one that is dieing, could it be because it gets worms which defoliate it? If so, I bet that is a popular spot for the fish. \:\)
Maybe you can just trim them back severely to help prevent excess transpiration and growth.


#35596 06/16/06 08:35 AM
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Loop, I had incredible results with stocking the tilapia in my 1/2 pond as you can see from my Tilapia grow out tank thread. My pond did not, and has never had the amount algae that you have. I also stocked at least 3 or 4 times as many pounds of tilapia as you. I also have 2 grass carp and had a bumper crop of tadpoles this spring that I believe contributed to the outstanding results. Probably 300 to 400 of the tilapia I stocked were only about 2" long. I rarely see any of this size now because most have been eaten but this huge quantity may have contributed to getting the algae under control initially and now the larger tilapia are maintaining control. I admit that I did not have much faith in these fish in the beginning so I had a jug of Cutrine on the shelf, just in case (our tractor supply store always runs out just when you need it). The jug still sits, but I won't hesitate using it if things get out of control. If I was in your situation I would probably give the algae an application on at least half of the pond and see if the tilapia can take care of the rest.




"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge." Stephen W. Hawking
#35597 06/23/06 11:54 PM
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Hadn't noticed this thread till now. ML mentioned that his FA seems to dissappear after rain. I assume he's talking about the floating stuff. Someone explained that FA grows on stuff in the pond and then floats when gas bubbles accumulate in the slimy stuff. Look close and you can see bubbles all over in it. A good rain will beat the air out of it and it sinks. Still there but on the bottom. I also think Looptech should try manual removal. I use a method that your pond looks perfect for. Get some floating rope, I got mine from a mail order surplus dealer. Stretch it across the pond (will take two people) and very slowly drag it accross the surface until you get it all into one corner. Now you need a third guy to start raking or scooping the stuff out. In an hour I can clean up a pond the size of what I see in your picture. One pass will get 50 to 75 percent of the stuff once you get the hang of it. I use a smelt net to scoop the stuff out rather than a rake. FA is just to fine for a rake.


Gotta get back to fishin!
#35598 06/24/06 09:19 AM
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Bz,

You are right, I believe, about the air bubbles. I've often wondered if one couldn't accomplish the same thing as rain by taking a water hose to the floating stuff. Much easier than raking...

Either way, raking or whatever, the FA will be back. Tilapia is the only way I have found to get recurring control of the algae...and no work required.

#35599 06/26/06 11:29 AM
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Wish I could stock tilapia here in MN cause that's what I'd do for sure. I don't think they'd survive even if I could get some but I'm sure the DNR won't let you put them in anyway. My pond needs cleaning right now from FA and DW so I'll probably do it this week. I'll try to get some pictures of the rope method. I'd like to document for myself what it looks like before and after.


Gotta get back to fishin!
#35600 07/03/06 10:14 PM
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The tiliapa finally went to work

#35601 07/03/06 10:25 PM
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heres the B-4 JPG

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