Aquaponics in the Yard-Day 11

2 days ago with 4 fish left in the tank, I did the following to reduce ammonia.
50% water change
Ammonia still at danger
90% water change
Ammonia went down to stressful

This took about 4 hours as I put water in 5 gallons at a time, after dechlorinating and thermostabilization. I only lost 1 fish overnight to that. Also I filled a basket pot with bio rocks and put it at the bottom of the reservoir, with the pump inside.

Today, I came home to 3 dead fish, but stable ammonia. Also nitrites and nitrates are high, so I can see my tank is finally cycling. It two days, I’ll show plant progress. And when my levels go down, I will put some more fish back in. For now I can conclude that all my fish are dead due to ammonia or nitrite poisoning. I will continue to “feed the fish” daily to at least provide an ammonia supply to the system.

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