Copper sulfate and shrimp?
Hello, the forgetful me bought a new large amount of fish flakes and I completely forgot that shrimp and copper do not mix. So after opening and the food at home I read the 50 or so ingredients and the last is copper sulfate. My new shrimp will be coming in soon. What is copper sulfate and will it be deadly if I use it to feed my endlers and shrimps?