I am cleaning my emty tank after moving. The tanks has been empty and dry for 4 months. I have scraped the glass clean but I am wondering about the dried/dead coraline on the overflow, sump, and equipment. Will it hurt the tank if it is not removed before I restart the tank or is it just a matter of if I think it looks bad? The reason I ask is because the razor wont get it off those items and I dont want to use any harsh cleaners since its about to go back in my tank.
Thanks in advance, Brian
Thanks in advance, Brian