Salzabar
Member
I have a 55 gallon shrimp/guppy/live plant tank that I feed a variety of foods. I recently came across an article on copper sulfate stating why you should never use it in your tanks. I agree and never use it but then, to the shock and horror, I found most of my prepared foods have listed in the ingredients copper sulfate or (worse) chelated copper. I only had this tank up for a month but I noticed my shrimps are not happy. Could be the food? Am I unknowingly poisoning them? The tank parameters are excellent. I am now looking for new foods. Any suggestions?