I got the old sw tank from a friend and it is pretty dirty i got it all cleaned up now its just i cant get these purple spots off i did get some off by scappying it with my fingernail for 5 mins just to get one off but is there a faster way?
A razor blade will work....but if the tank is acrylic there is a chance of scratching it....a safer way is to use a old credit card....they work fine and are not as likely to scratch.
