Tunze stream pumps with different voltage on the same multicontroller?

[Pny]

I have two Tunze 6101 stream pumps (24V) and one Tunze 6105 stream pump (18V) in my aquarium. Can I connect all these pumps to my Tunze 7095 multicontroller at the same time, or will I break the 18V pump if I do so, due to the different voltages?

 

[shawnz28]

Yes it is fine. If you look at the propellers they are or should be two slightly different sizes. The 24v has a smaller propller than the 18v, cant remember the size for certain but it is something like 42 vs 45mm. This was a change from some time ago in attempt to make the pumps quiter by spinning slower. Just make sure that the correct impeller is with the correct jumper.