The mini molds are usually around 1 oz per cavity, so you should have your wax amount reflect that, with however many you actually want to make. And yes, it's fine to pour at the same temp as votives. You can pour pretty warm in those molds, but the FO usually can't handle the really high temps itself. You may want to warm up the silicone mold a bit before you pour, otherwise you could get a layer of bubbles just under the surface of the wax where it touches the silicone. It doesn't matter a lot, but if you want the color to come through and not be lighter, you may need to do that.