Magnets

[fazgood]

I am looking to add some small shelves to the back wall of my tank to try my hand at growing a few frags, mainly of pieces that are laying around the tank. I heard/read that there are some magnets that are avaiable that could be used to support the shelves. Anyone have any experience with some and which brand?

Thanks

Faz

 

[chadfarmer]

i use a mag float