
I had to listen to my intuition telling me not to use it in my aquarium. Whatever coat they apply to the rocks to make them iridescent or colorful, they flake off in shards and float all over the tank. Transparent shards float in my aquarium. I can't get them all out because you can hardly see them. He's already killed two of my fish. I'm in the process of removing rocks from my aquarium as I write this, but whatever you do, DO NOT USE THIS IN A FISH AQUARIUM. It is not safe to use in an aquarium.

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