Just wanted to add, I have a look at the first pump you linked to which states that it Max Flow Rate: 80 GPH (300L/H) Recommended H-Max (Lift height): 1 foot. My guess would be that it would pump 1.3 GPM straight out and less at one foot. At five feet, it would be a trickle. That said, it also states that the outlet: Fits 5/16, 1/2 inch ID (inside diameter) tubing, and you stated you used 1/4 inch tubing which would further restrict the flow.

Jason