I am considering the Tunze algae reactor 3182 but I have what is possible, a dumb question. I have a Nano aquarium with no sump so I want to check if I put the pump in the main display and the reactor on the floor, will the pump be able to push the water back up to the main aquarium and will the pressure in the reactor leak? I did not know if the reactor chamber outlet had to be higher than the water e.g. gravity feed the water coming out of the reactor into the aquarium