What do you guys use to seal your pvc together? I have some silicone here and was thinking about using that but the guy at home depot said it would be to thick. But he couldn't offer any suggestions on what would be aquarium safe. He said "They're all AQUARIUM safe, I don't know about FISH safe though, hahaha!"
fyi you can sand the "purple drippy lookin stuff" off pretty quick and easy... or just leave it if your lazy like me...
and you can use silicone as well.. however thats more of a "at your own risk" sorta thing... unless its made for underwater use it gets a bit soft after a while..