[youtube]http://www.youtube.com/watch?v=uazhVCE8E28[/youtube] The Tunze Osmolator Nano 3152 is the smaller version of the larger Osmolator 3155 from the German company released at Interzoo last week. This version is made specifically for smaller aquariums, around 50 gallons or less, providing what Tunze describes as “processor-based…