Looking for a service that will make a custom built plastic cover for an aquarium. I'd provide the specs and the company would make it. It is nothing special (I think), only a large sheet of plastic with some holes for filtration tubes to enter/exit. Extra features would be nice of course. I've found custom metal lids but nothing based on plastic. I have a salt water aquarium and my last metal lid rusted within months, so metal won't work.