PH's GPH?

[Zeke]

This sounds like a dumb question, but what is the gph of Rio90? I'm a bit confused at the flow rate as there are two rates listed: 80 gph for "0ft." and 50 gph for "1ft." What do those "ft." mean? BTW, I'm using it in a 5.5 gal. Too much or too little? Thanks.

[sprite]

80 gallons @ 0 ft is like not haveing to pump water up a tube,so if its 50 gph @ 1 ft then it would only pump 50gph going straight up a 1 ft tube....so if your putting it in your tank to ciculate water then its going to pump 80 gph but if you put it in a sump and have to pump water back up to your tank from the floor its going to pump less water . hope i explained it well enough