You'll probably want to come back on the throttle to fly the plane as slow as possible, but with enough airspeed to give good control authority and safely above stall speed. Each airplane is different in that regard, depending on wing loading, balance, airfoil, and other factors. Just slow it down as much as possible but where it still flies well. That's the advantage of the "floater" type. They will nearly hover without stalling. My guess is your plane will fly at a little less than half throttle once it's in the air and has some altitude.