One of the problem is that the AquaBee 2000 is having output diameter of 22mm and schuran 100 input only 16mm. To connect AquaBee 2000 to Jetskim 100 input, we use 2 valves and i believe that seriously restrict the flow.
AquaBee 3000 is too strong for Jetskim. Anyway, the Jetskim specs recommend Ehiem 1250 for Jetskim 100. Bought a new 1250 today and the output having a diameter of 16mm and fit exactly to the Jetskim input and works perfectly...