just bought a 50 high, and aparently the guy didnt like the mirror back so he put a background over it, inside the tank.with what seems to be regular silicone.ive razor bladed it but marks still remain anyone know anythign to help?
scape it clean with a razorblade then windex/nail polish remover to get the "film" off.. be sure to clean the tank real well after and let it dry before adding fish...