Backyard Aquaponics
A place to discuss aquaponics

I think it may be tempurature. Any thoughts?

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You may want to check that your test kit is giving accurate results.

Post your results here including temperature plus other details such as species of fish, size and number of fish. A description of your system including amount of grow bed volume would be handy as well.

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ArBe
My Home System
My Country Backyard

The ponic gods aren't happy..

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www.havehomewilltravel.com
Life on the road

Rainwater from a galvanized roof?

What are your water temps like and what fish are you keeping? Pics of the system? If you are able to measure DO directly that would be helpful, but I can probably tell you if you have enough aeration by looking at how it's built.

Also, any symptoms that your fish are displaying prior to death? That can help narrow it down.

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I am always experimenting and always learning! Aquaponic systems engineer and plant alchemist. Farmer Educator at Ourfoods https://www.ourfoods.org/