Ok, for reference
25cm is aprox 9.8 inches.

Having a veg chamber for your mothers on inside 10 inches is going to be hard. Really hard. I don't want to say impossible, but... hard. Go for it... let us know how it goes.

The lower chamber is workable.

As to lights:::
Fluorescents are good.
HIDs are best.

As to ventilation:::
Computer fans will probably work if you stick to fluorescents.
As soon as you turn ON a HID in there... you'll go from "fridge" to "oven" in 3 minutes... probably.

The frige... you're using it because you have it, or because you need stealth?

Best buddy,

-turtle420
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