I want to increase the efficiency of my lights, and although the light units have white reflectors built in (Fluval Venezia 350 tank), there are 3 black plastic access panels (front, middle, and back) on the hood inbetween the 2 light units. The plan was to add some kind of reflective film to the underside of the black panels and maybe cover the white reflectors too, but I'm a little concerned about the adhesive on the film leaching any chemicals into the tank water: Option 1: http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0046927716 The other option is to use a film that isn't adhesive backed, and stick it on with a suitable silicone: Option 2: http://www.hydrogrowsystems.co.uk/store ... asp?spc=DI or http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0099778701 Should I steer clear of the adhesive backed stuff? Thanks.