General guideline i use and read here, is one gallon per sq ft. So you can go 1x10, 2x5, 3x3, etc.
I also have a 3x3 tent, and a 2,5x2,5 one. Did 1x10gal fabric pot last two grows, good for the 2,5x2,5, should have vegged longer in the 3x3.
Strain plays a very important role in how much and...