sorry i know this has been posted before but i can't find the thread. how long do you wait after adding silicone to add your frogs? i used some silicone to adhere a new backround to a tank. that was about 48 hours ago. i sealed the tank for a couple hours and when i opened it i don't think i smelled silicone. there was a smell, but i'm pretty sure it was just a normal tank smell. is it ok to put the frogs back in?