[Orion]

The shrimp tank is a standard 5.5 gallon rectangle. I haven't a clue what the turn over rate would be as I don't even know the GPH rating of the pump. But I do know that it's not much. I would guess it would be somewhere between 25-50 gallons per hour? Lets take a happy mediumish of 35, so that would turn the tank over 7 times an hour. That would be optimal, so reality maybe 5? IMHO quite suitable for this shimp only tank, as it does see much love and gets a WC every week.

This is a great learning time for me, and so far it's going rather well. One issue that I'm running across is that any air trapped in it (and it's seeminly difficult to get all the air out) is traped at the top, and not able to escape, unlike traditional canister filters where the motor is at the very top of the liquid chamber. I've not quite figured out a good way to help this air escape, or even if there is a good way other than removing the pump from the container all togeather.