So, I remembered to bring the spigots for the pump, this morning. Hooray! I got to the house, did some puttering around, and then started to hook up the hose to the pump, set the pump in the fish tank, and turned it on.
The pump's instructions say to start it at full blast, and then reduce the flow if necessary. Since the pump is rated for a 10 gallon set-up, and mine is 2 gallons, at best, I knew I'd have to reduce. Still, I followed the instructions, and once the flow was flowing, I reduced it to minimum.