Will My New Operation Work

Ok heres what i got...

Box is 1.5ft x 1.25ft x 3ft
Will be using a 250 watt HPS light
would like to grow 2 plants in this space. is that possible?
using better gro potting soil
havent decided on nutrients yet any suggestions?

would this set up require any ventilation or fans?

any tips on what i can do better?

You will always require ventilation and fans. Air has to circulate in a marijuana eco system. You can easily grow 2 plants in this setup. Make sure u flower at no higher than 8 inches or they will out grow the box.