OK, just take a look at these two links first:
As you will see it is recommended that you provide at least a 30g tank. Even if you buy them small they will grow and potentially cause problems if not have health issues.
On the other hand this link shows a wide variety of nano appropriate fish for which a 10g would be more appropriate:
Personally I prefer a little variety. If you go with fish that are better sized for a 10g you can probably get 2-3 fish plus inverts providing you keep up on wter cahnges.
Either way I would still recommend you wait another 2 weeks to ensure your cycle is complete and get the other issues stabilized. This will also give you some more ime to consider potential inhabitants.
Just noticed your origianl post was a week ago, do you already have fish?