Jebao wavemaker question
 

I just bough this jebao wavemaker and the rubber gasket on the magnet just pulls right off. I'm hoping that the magnet will be strong enough to create a seal and prevent the water from getting in. Does anyone here who uses it have any problem with rusty magnets? Should I put silicone onto the magnet to waterproof it? Thanks!

I wouldnt worry about it. All of mine come off easily.

No rusty magnets in the aquarium?

use mine to mix salt comes off all the time no problems just slip it on it shouldn't move once its in place just when moving it