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Mathematics, 13.08.2021 23:50 texas101st78
I recently bought fish gravel that i believe is toxic to other fish but medicine to betta fish.
And when I had a 5 gallon aquarium all my fish died within 1 week so i believe the rocks are toxifying the water and kill fish.
But its just my theory?
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I recently bought fish gravel that i believe is toxic to other fish but medicine to betta fish.
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