This is a small 2gallon hydroponics container and every 3 to5 days it gets this white chalky stuff at the bottom of the bubble stone!
Not sure what it is and have never seen it anywhere else.
I use well water and my friend thinks it's calcium settlin at the bottom!

I also have another question for you, why do they look like this!
What is this brown crap, I don't like my girls looking all busted up.
Mick420 Reviewed by Mick420 on . Anyone seen this before? This is a small 2gallon hydroponics container and every 3 to5 days it gets this white chalky stuff at the bottom of the bubble stone! Not sure what it is and have never seen it anywhere else. I use well water and my friend thinks it's calcium settlin at the bottom! I also have another question for you, why do they look like this! What is this brown crap, I don't like my girls looking all busted up. Rating: 5