Magnetic rock using koralia magnets?

[kris2001]

I have oceanic 150g... With thick glass.

I'm planning to make a magnetic rock by gluing old coralia pump magnets to a small piece of Rock and sticking it on the glass with another Corala magnet at the back. My question is are both magnets reef safe both the inside and outside magnets?

Should I only use the inner ones with that pump attachment inside DT?

planning on using reef epoxy and super glue... Lmk thx

 

[X-37B]

I used Tunze magnets as they are stronger and you can get one for 3/4" glass.
I bought a Tunze mag rock and the magnet on the back is not strong enough in my opinion. I will use an upgraded stronger Tunze magnet.
Here is a pick of the one I made.
Do use epoxy as Tunze uses silicon.