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PostPosted: Nov 25th, '17, 00:46 
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New to this board. So hope this is right area to post.
Have a aquaponics system with tilapia doing well for over a year.
Had some fish die overnight and went ahead and fillet the fish and froze them. Testing the water discovered high nitrate levels. So my question is if it safe to eat fish that died from high nitrate levels?


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PostPosted: Nov 27th, '17, 10:27 
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High nitrates don't tend to kill fish so I imagine it's probably something else. So long as you got them quickly it should be ok. Wouldn't want to eat a fish that had been festering in warm water for very long.

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PostPosted: Nov 27th, '17, 22:05 
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I'd suggest you do more extensive water chemistry tests. Nitrate is the end result of proper nitrogen cycle. The plants take over from there.

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PostPosted: Oct 26th, '20, 16:06 
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It was suddenly harvest time yesterday with the 36 degrees we had in Perth.
We couldn't "save" 3 trout as they were dead and no idea how long o we buried them with the waste of the others.
If the trout has still some life in it, we use it. If it is dead and doesn't move, we bury it.


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PostPosted: Oct 28th, '20, 23:02 
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Avoid cooking fish which has been dead for a while - that's a general thumb rule. Then, to each one his own style.

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