on one thread, you eluded to eheim being expensive and on this thread you say it's only $10 more
i ran both pumps at 5ft. if heat and electricity usage is no concern, go with the eheim 1262. running both 1260 and 1262 at 5ft, this is what i got:
1260 - 45watts consumption, approx 450gph
1262 - 80watts consumption, approx 650gph
Calculation can be affected by how many elbows and ball valves, also the size of the return PVC. My setup has 3 elbows and 1 union, but no ball valve. Return pipe is 1" vinyl tubing until it reaches near the top of the tank and splits into 4 returns with 3/4" PVC and a Ocean Motions Squirt.