Is this lime scale? Can it hurt the frogs and how do I get rid of it without harsh cleaners?

[flybyferns]

My terrarium is growing/getting some hard scale deposits that I assume are from hard water? Is this correct? Is so ho do I clean them off without using something that will harm the frogs? Is there a way to prevent this? I use tap water with tap water conditioner when adding water and calcium supplements every 3rd feeding or so.

Hi ,
You can mist with distilled water. Distilled will not stain the glass.

I would clean these stains with a spray bottle of distilled water, a single edged razor blade, and a damp cloth.

You don't want to do this 'dry', whereby creating a fine dust the frogs could inhale. Keep it nice and wet. I use this method every couple of months in my tree frogs enclosures. Works like a charm !

No chemicals necessary !

Lynn