Ok so I went to lowes and got the acrylic and silicone. \n\nI couldnt find silicone that said aquarium safe, pulled out the iphone and a quick search showed that people have used GE silicone 1 for windows/doors with no issues. It is 100% silicone and does not have any mildow resistance chemicals. \n\nthis is what I got [url=http://www.lowes.com/pd_47209-72643-LW012A_0_?productId=3070881&Ntt=ge+silicone&Ntk=i_products&pl=1&currentURL=/pl__0__s?Ntk=i_products$rpp=15$No=15$Ntt=ge%20silicone$identifier=]Shop GE 9.8 oz Silicone I Waterproof Window & Door Clear Caulk at Lowes.com[/url]\n\n\nIs that the right stuff, want to make sure before I use it. \n\nAlso lowes only had .08" thick acrylic, is that going to be thick enough?