I grow inside a 4x4x6 ft tent. I usually use M3 soil and just water and a little Papa’s Perfect Poop 3 weeks into flower that are grown in 5 gallon fabric bags. I would like to try my hand at breeding. I have a male plant that is going to be raised outside and offsite from the location that I grow. I really don’t care how big it grows I just want pollen. Is it safe to keep it in a 3 gallon pot and just water it until I can harvest pollen? Would putting it in a 5 gallon help? Would I need to feed it later in life if its only in a 3 gallon pot?