Gex pure sand question

[Fujisasuke]

Hi guys,

Just wanted to check if anyone has used Gex pure sand before, and is it inert (does not alter parameters of the water)?

The packaging is in japanese and i couldn't find any information on this when i googled therefore i am asking here.

Pictured below, thanks in advance!

[qool]

I am currently using so far from test no alteration to ph. Just maybe rinsh once and you are good to use it. The maintance is the hard part.

[Fujisasuke]

Thanks bro, duly noted!

[mincedmeat]

You can always put the washed sand in a pail of water and let it sit for a couple of days and test to see if there would be any changes to the original water parameters you had left it in.