New member
I have been using SeaCure copper treatment in my 75 gallon tank for nearly 5 years. Over the last 6 months I have started a 300 gallon tank that I am using Red Sea Paracure copper treatment in. I intend to move all inhabitants from the 75 gallon to the 300 gallon soon. Will there be any issues moving the rock pieces into the 300 as these have obviously been absorbing the other brand of copper for some time. I was told this could be a problem but I am skeptical because I don't know the exact ingredients, but it seems both brands are very similar.