Any suggestion for magnets to hold a frag rack through the glass?

[jobille]

Any suggestion for magnets to hold a frag rack through the glass? maybe a link where to buy it.
I bought these racks from amazon and it came with suction caps.
I think if i use a magnet it should hold stronger and can last longer.
Thank you

 

[blaxsun]

There was a thread last week (I think?) where they were discussing reef-safe/sealed magnets. If you do a few searches on R2R you can probably find the thread.