Reef Central Online Community - View Single Post - BRS Tested Some Carbon Blocks: I'm Testing Them, You Should Too.

Buckeye Hydro · 02/15/2018, 03:50 PM

Doesn't matter if its 2 ppm or 20 ppm going in - you'll get TDS rising in the effluent through long before the entire cartridge changes color.

02/15/2018, 03:50 PM	#148
Buckeye Hydro .Registered Member Join Date: Sep 2006 Location: Cincinnati, Ohio Posts: 4,857	Doesn't matter if its 2 ppm or 20 ppm going in - you'll get TDS rising in the effluent through long before the entire cartridge changes color.