rootep wrote:

Hi, everyone, do you know that tourmaline sand is good for fishes?

Tourmaline can release 0.06mA bioelectricity in the water and
electrolyze bigger molecule group of water into smaller or single one
so as to activate water. Eradiate more than 90% FIR (far infrared ray),
generate above 235p/s.cm3 negative ions to make water presented
alkalescence (PH is 7 ~ 7.5), antibacterial and deodorizing, and
release mineral microelements.

This is pure nonsense. Did you get that from suppliers info? In that
case the prosecution service should be informed, because of fraud.