Silicone question

[Pumpkincrab]

Hey y'all:

Is it safe to apply silicone in a tank that has no crabs in it, no decorations, but just substrate?

The tank I'm working on (29g, for captive-breds soon to come) has had substrate but essentially nothing else in it for months, ever since I moved my crabs out of it in March.

Would it "poison" the substrate from the fumes? I've tried removing the substrate, probably got 1/4 of it out...but want to know if I have to do so before I do any more.

Thanks

[wodesorel]

It just needs to air out before the crabs go in. It won't soak in or poison anything inside, but the fumes themselves can be overwhelming while they're being produced.