Nick sure you may be able to keep low light coral in your tank but i think if he relly wants to have a serious reef tank he should get some serious lighting.
And by the way connord182 Im only 13(14 in two weeks!) and im setting up a 15 gallon reef. i plan on spending a few hundred wonce the tank is fully stocked. I just purchased a light that set me back $107
No in a 10 gallon you dont need ''perfect water conditions'' cause you probly wont be keeping sensitive coral(some of the sensitive coral i dont think are that good looking anyway)
if you want someone here to give you accurate pricing for a ten gallon you need to tell us what you already have.(a tank,a canapy,a powerfilter,ect)I think a 10 gallon nano reef is defenetly in the budjet of a 15 year old(keep in mind christmas is a month away
If you are unfimiliar with these terms than google them so you can better comunicate with the people here
and some other stuff i cant think of rite now