Help please aqua silicone

[Amsterlona]

Hi sorry if I've posted in wrong group but i need some advise. i have made an ornament cave from slate for my tank. I've stuck the slate pieces together with aqua mate silicone so it's safe and won't collapse. How long after should i leave sealant before putting the ornament into the tank. Don't know if putting it in after an hour or so will be dangerous to fish. Or leave it 24 hours.

 

[Essjay]

I usually wait 48 hours before putting new silicone in a tank. It may be safe sooner but I would rather leave it longer to be on the safe side.