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Jumping Talapia
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Author:  Amac [ Oct 4th, '21, 00:40 ]
Post subject:  Jumping Talapia

Hi,
I started a small new indoor system, 210 L drum cut in half in the length, growbed on top with fishtank below, I’m pumping water from the fish tank through a filter overflowing into the grow bed, i have a external suphon back into the fish tank, 7min to fill and 6min to drain, dual air pump with ball and disc for air.
I added half the tanks water with cycled water from another system and half fresh water, PH is 7.2 temp is 20deg c, the tank is open at the top, i added 10 x 4cm Talapia to the tank, within 4 hrs all but one had jumped out of the tank and onto the floor.
What do you think could be the cause of this behaviour?

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Author:  dstjohn99 [ Oct 4th, '21, 22:51 ]
Post subject:  Re: Jumping Talapia

Tilapia jump, especially when stressed. In a system with no sump tank, the water level changes significantly and that stresses the fish. For sure put a net or lid of some kind on the tank. A better design would be to use a whole barrel laid on its side for the fish tank with an opening cut in the top. This will allow more water for the fish and a smaller opening. Maybe if they don't lose half the water every 10 minutes, they will be less likely to jump.

Author:  Amac [ Oct 6th, '21, 03:20 ]
Post subject:  Re: Jumping Talapia

Thanks for info shared

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