I could not find any info on this on the internet. I wonder if there’s anyone here has experience with it. I am arguing with Hubby over this. He said we should soak it in vineger then rinse it off and put it back in the tank. It’s lava rock and so pourous, with soaking 24 hr in the acid, it’ll kill the fish!
Anyone has any knowledge, info, or lead?
By the way, my new boss is so demanding now I even lost my commuting time for knitting to reading work materials !!! So no more knitting for a while, I hope it’s just a while.