Silicone cure time?

[mike31154]

Dry box for VorTech, cool. I was thinking I might do the same at some point. Does it extend up past the tank rim or is it more or less level? Would it be possible to post a photo or two?

I assume the box will be near the top of the cube, so there wouldn't be as much water pressure as lower down. Nevertheless, I suppose it never hurts to wait a little longer just in case.