Um, you where not planning on ordering the 45# box for the 10 gal
where you? I bring this up because I really doubt you can even put 45lbs of rock in a 10 gal
tank and have much room for water.
This is one of the problems with a nano tank is that alot of the standard bundles wont work well because of the smaller space.
Yes you can cure the rock in the tank as your cycle. I run my 20 gal
with no skimmer and keivin runs his 20 gal
with a skimmer. I do weekly waterchanges of 4 or 5 gal
to compensate for not using a skimmer. I also top off my tank from evaporation every other day.
For a 10 gal
tank I would say 1 small fish or at an absoulte max 2 small fish would be your fish limit.
If this is your first tank I would seriously suggest you look at a 29 gal
tank or larger simply because the larger the tank you start with the easier the upkeep on the tank will be.