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 Post subject: Tilapia not eating
PostPosted: Oct 29th, '18, 03:34 
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I went away for a week long conference with my wife taking care of the tilapia while I was gone. During the week they stopped eating and I am unsure why.

The tank is in a garage so somewhat insulated from the change in weather (I live north of Chicago). I tried a water change (roughly half of the 250 gallon tank). The fish seem fairly active but are hanging out in the deeper water as opposed to the top where I would normally find them,

My thoughts are that there is either an oxygen problem (the air-stones are toward the bottom of the tank) or the water temperature. It is probably down at least 10 degrees since the summer and will likely continue to drop. I have one tilapia in a heated 75 gallon tank that eats fine (temperature hovering around 75.

I have a heater for the main tank comin in on Tuesday and see what that does.

Thoughts?

John


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 Post subject: Re: Tilapia not eating
PostPosted: Oct 31st, '18, 08:05 
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Follow up, ammonia, nitrites and nitrates are all low. Possibly the water change and lack of eating. But the low levels would not affect the fish. Correct?


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 Post subject: Re: Tilapia not eating
PostPosted: Nov 1st, '18, 02:46 
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Your first thought was probably the right one - the water temperature, you haven't mentioned what that is for the tank with the problem or what type of Tilapia you are growing :? Look for any dead fish on the bottom or anything that might spook them when you go to feed them.


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