I have a nice backround for my 100 G Accrylic tank, however, once water is in the tank the backround fades away and you can hardly see it. I have heard something about a product that you can apply to the backround and it secures the backround to the tank and at the same time makes the backround much more visible. can someone tell me what this product is called and is it safe to use on plexiglass ?
Bert
Bert