Auto Blueberry Indoor Grow!!!

I was hoping someone could give me some information, as this is my first indoor grow. I love the outdoors, but indoor is so much safer, plus growing season is over for those who live in the states. I decided to go with an autoflower strain that will produce quick, high quality bud indoors. I've got ten Auto Blueberry (Blueberry x Lowryder cross) females on their way and realized I needed some pointers from novice growers to ensure myself my grow will be successful. They will be housed in a 6' by 10' area. My questions are:

1) What light should I use?

2) How long should I have light on an autoflower strain? Or should I just always have it on?

3) Do I really need ventilation from in to outside my house? Does an indoor air purifier help? Fan? (remember, I'm new to indoor growing)

Any help would be greatly appreciated and, yes, I will continue to try and find these answers through more research.

Well if youre wondering why nobody answered its becuase you can find the answer to all of your questions if you look around.

1) You ask me what light you SHOULD use. Well the more appropriate question for me to ask you is how is your budget? Get an HID bulb. Dont get MH or HPS, go with a ceramic metal halide. They provide spectrum for both flowering and vegging with just one bulb. I'm pretty sure it requires a magnetic ballast. I'm not sure exactly, try looking around to make sure. Also the CMHs only go to 400w. and if you ever plan on growing anything other than autoflower, youll need to get a switchable ballast so you can switch from MH to HPS.

2) Use 18/6 for autoflower, although you can use 24/0, darkness is the time when the plant produces rooting hormone, so you see the connotation.

3) Its not 100% needed, but the thing is when you have an HID bulb the temps can tend to get high so we use fans and ventilation to suck all that heat away from the bulb, thus making your grow room cooler and more close to the ideal 75 degrees. fans blowing on your plants will make the stems strong and able to hold more. air purifier? Sure, but absolutely not necessary.

Where did you get the seeds from?