I actually used Ich Attack in my son's planted 20 gal a few weeks ago. I traded a local guy some plant trimmings for some young mollies and they introduced ich into his tank. As Mudraker said, Ich Attack claims to not be harmful to plants or inverts. My son has RCS and a mystery snail in his tank as well as other fish and everyone pulled through ok. No issues with his plants or water parameters either.