Mag-float Question

[DAlmond123]

Do they scratch the glass of your tanks? I have some scratches already on my 65 gallon tank and I was just looking for a way to get the glass off the glass of my tank without scratching it.

 

[AdAndrews]

Do they scratch the glass of your tanks? I have some scratches already on my 65 gallon tank and I was just looking for a way to get the glass off the glass of my tank without scratching it.

algae scrapers only scratch if they have something inbetween them and the glass, ie a piece of sand/gravel.