Tetra Cichlid Color Cichlid Sticks Color Enhancing

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I bought and used this food about two years ago and after only a few days of feeding my green terror cichlid this food he died!

I bought the food at Walmart for .99

He was a healthy fish with NOTHING wrong with him until I fed him this crap.
This was around the time when dogs and cats were becoming sick and dying from their food being infected with e coli or something.
Has this happened to anyone else?