Pond Boss Forums Thread Like Summary - Tilapia

I stocked 30# of Mozambique Tilapia in my 2 acre pond on May 7. They were 1/2 pound and less.


Water temps dipped down to 50° before I found any floaters. So far I’ve only recovered 4 — two were still alive (1.34 lbs and .94 lbs) and I’ve seen a total of 6. The rest I’ve harvested have been right around a pound. I’ve got more nutrients than I need, so I’m trying to pull out as many as I can. Temps bounced back to 56° within two days and I haven’t found any more dead since
Got to watch an Osprey harvest one of them after spotting it with my drone.

Secchi visibility is just short of 7 feet so they are easy to spot. There were several ducks on the pond in the picture below. Look like white dots from 350 feet.


Cover - 6 feet deep


I have 2 questions.
Would 1 to 1.34 # be the original stockers?

From one of Mister Cody's previous posts he had some over 2#, but not sure how large they were when stocked.
What length/weight should I expect to see from the ones that hatched?

Here's a video from the drone of the one I spotted that the Osprey harvested. Wish I could have got that on video. I got a couple of pictures with my phone but they are not that good.

Click on WATCH ON YouTube to see the video.



I've got to get ahead of the bushy pond weed next year, I pulled some out earlier this week and it was full of 1/2 inch to 1 inch BG so I guess it does have some benefit.

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I do not have daily weight measurements per day of BG for growth as outdoor growth for an entire year due to winter conditions in Ohio where my fish growing days are around 180 with water temperature 60F+. For indoor RAS growth of BG from 1" (abt 0.15g) to 6.75 " after 273days and weighing 110g is around 0.4 gram/day for the shooters / jumpers. Then continued growth was outdoors to 1 yr old as 365 days was to 9” and 290 grams for 0.79grams/day.

I find it very interesting that weight gain per day for tilapia (primarily blue TP genetics) dramatically increased and was a lot more gain / day after the fish reached 7" long. From TP fry and growing for 151 days indoor RAS (Jan-Jun01) they likely as the largest males weighed around 135 - 145 grams. That weight gain per day was 0.96grams/day or close to 1 gram per day. Important note is that the amount of food supplied was decreased about 20-30 days proir to Jun1 to intentially slow the growth rate to produce TP primarily in the 3 fish/lb range. Thereafter the 7" at 145 grams and then growing for the next 106 days water 70F to mostly 78F to 87F the average daily weight gain was a maximum of 9.3 grams per day to some TP being 13” long and some weighing 2.0 to 2.2lbs at nine months old. Average weight gain per day for 257 total days was 3.89grams / day.

Some of the 2.2 lb TP were from a pond that had no pellet feeding and Chara as a main food source. The 2 lb TP from my pond daily ate some pellets and primarily Chara.