What kinds of silicone will work? I know GE II silicone is non-toxic once cured. i used it on my vivarium which is at 95% humidity. and what glues can i use to bond acrylic to acrylic? Ive herd Weld-on but cant find it at my stores.

bump

you will have to order the weld on and buy silicone specific to aquarium use if you can.
if not then just make sure it doesn't have the mold mildew blocker

wheres the best place to buy it? its like $15 on ebay including shipping.

That's not a bad price
get the weldon from tap plastics

thanks i just bought weld-on #4 for $13 on ebay. thanks for the help