TetraMin Flakes - fish food

After using this product, the water started getting dirty after 2 days and it smelled like dead fish, with 30% of my fish dying.

I’ve been feeding my fish Tetramin for 35 years, but since the recipe changed in 2024/25, my fish aren’t as keen on it anymore. The flakes also feel different, a bit softer. If something is good, it’s good. Why was it necessary to change the recipe??? Dear Tetra, please go back to the old recipe, this just isn’t it.