Hydor Koralia Powerhead suction

[cvsailer]

I have two HK power heads and no matter how well I clean the suction cups and my tank I can no longer get the powerheads to stick to the side of my tank. Anyone have any tricks for me?

 

[kfisc]

I use the magnets- all suction cups I've ever had eventually wear out. You can adapt various hang-on pump devices, such as MaxiJet pump hangers.