You were right when you said Leo eggs are different compared to Chicken ones, lol.
You said you have deli cups for this? Perlite is the best incubation medium, vermiculite seems to lose moisture much more quickly then Perlite(Also, the best place to start(Besides supplies), is to decide what gender the offspring will be. Males should be incubated between 88-90*F, Females at 79-82*F and both sexes at 83-87*F. Find a spot where the incubator's temperatures won't flucuate and make sure there's not alot of noise there, either.. Set it up, adjust the metal bar with a thermometer placed below a viewing window and wait for the temp. to stop at your desired temperature(This should already have been done 1 week prior to the expected date of the eggs). While the eggs are still in the laying chamber, they should have been marked on the top with a Sharpie marker(Just carefully draw a short, thin line, because turning the egg from it's original position will drown the embryo). Next, carefully place the eggs into the deli cup(Pre-dig ruts for them to rest in) and spread a small amount of the medium gently along the sides of the eggs. Set the deli cup onto the chicken wire flooring inside of the incubator(Water along the bottom just rusts the elements, so forget that..) and I'm not exactly how fast the moisture in the vermiculite(If you use this medium) will evaporate, but check daily on the humidity level of the medium. Spray the medium if it feels practically dry or if they eggs begin to look like they're drying out(I heard that when the eggs dry out, it's good to gently sprinkle a few drops a water along the eggs..). If you use Perlite, then you can just make sure the deli cups don't have air holes and check on them once a week. I don't know the exact ratio of medium to water for humidity, but I have a link that explains what I just said in great detail.
The eggs should hatch anywhere between 43-63 days.. Incubation is shorter for males, typically, and some geckos hatch earlier/later then that period.
For detailed instructions on the Hovabator method for leos, go here:
www.albeysreptiles.com/incubate-eggs.htm
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-Britney
2.4.1 Leopard Geckos: Ron, Raine, Dream, Tango, Go-Go, Johnneh and Salleh.
0.0.1 Bearded Dragon: Lil' Little.