Plant problem... HELP PLEASE!

[onlymedical]

does anyone know what this could be?
found it like a week ago and is now starting to show up on other leaves on other plants around it, seems like a scale of some kind? it has little white crystals in the middle if you magnify it

any advice will help

thanks.

 

[tje22]

What kind of water are you spraying her with? looks like really hard water.

 

[onlymedical]

What kind of water are you spraying her with? looks like really hard water.

i think you might be right.
thanks!

 

[tje22]

No problem, thats what this place is for. +rep man

 

[Weedler]

I had spots develop I have hardwater as well never looked at it that close but I did stop a week before starting to flower and haven't seen any troubled leaves since.