I picked up 3 the one big one and 2 smaller ones. I couldnt have them shipped cause seller couldnt find a shipper that would ship them. I Had 3 45gallon containers but only used 2. 1 for the big dat and 1 for the 2 smaller ones. I had a power converter you plug in to your lighter area in the car and just pluged a big air pump right into it, then just ran the airlines. They are in a 180 and at first they did fight to figure out whos in comand and you all must already know...the big dat....But just woke up and they are all playing nice no fighting.