cloudy white on tank

[tamra&steven]

i noticed that one wall of my sump is turning cloudy white and is hard to ge off. i have to scrap it off. it is also around the top of my main tank too. i dont know what it could be or how it got there. could it have to do with having high calcium?

 

[tamra&steven]

any ideas??

 

[ccCapt]

Abiotic precipitation of calcium. You are either dosing too much calcium or your mag is too low to handle the amt of ca in your system.

 

[tamra&steven]

ok cool thanks