The acylic and glass won't be bonded....... :cry: you can use the light grate from Home Depot and build a self standing box inside or you can use the acrylic to build a box that fits tight in the tank unfortunately nothing will bond the two surfaces together (that I am aware of). Also the screen will work to hold thing in. I just thought of something........Hmmmm..... Try a hot glue gun to see if it will bond glass and acrylic......Probably not, but I don't think I have tried that....