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Thread Like Summary
Esa77
Total Likes: 2
Original Post (Thread Starter)
by Esa77
Esa77
Hi, I'm wondering about aeration time for a pond I just stocked with trout.

It's an older natural improved pond about 1/3 of an acre, roughly 130 long and 100 feet across, max depth in the middle is 6-7 feet.

I've been running a bottom diffuser aerator for 10 hours a night for almost 2 month now. Water temps are currently 62 surface, 58 bottom, recently dropped. Air temps have been high in the 50's and low in mid 30's for the past 5-6 days.

I'm wondering if with just stocking today 20 15-16" rainbow trout and about a dozen 10-12" brown trout, if I should change the aeration length as they adapt to the pond? Possibly making it shorter the first night and slowly increasing each night, like you're suppose to do when introducing air into a pond for the first time.. ?

Or am I better off just keeping the same aeration schedule that I've been running? It's kept the temps down but I'm also wondering about DO for the trout.. I do not have a meter.

Any quick advice is greatly appreciated, thanks!

smile
Liked Replies
by 4CornersPuddle
4CornersPuddle
Right off the top of my head, I'd say keep your aeration schedule as it is, or run it 24/7.

Are there other fish in the pond? Do you have extensive submergent vegetation? Either of these two could increase the oxygen demand during the night.

I've had your numbers and sizes of trout in my only slightly smaller pond along with hundreds of LMB, sunfishes, YP, grass carp without any shortage of oxygen whatsoever, with similar water temps. And this is without aeration during our warmer months. We do have a trickle of fresh water running into the pond.
1 member likes this
by esshup
esshup
The problem you had before was most likely due to mixing too much anoxic water with hydrogen sulfide in it with the rest of the pond water. I'd run the aeration 24/7. What was the water temp top to bottom when you first started up the system?
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