Question: Silica sand for axolotl tank? Which of these? [pics]

[Kizu]

I've been thinking of adding Silica sand for my axies' tank, I've bought this one but I think it's too big and I fear it might cause impaction and it looks sharp

Looking around on the internet I've found someone selling finer sand, it claims to be of "00 granulometry"

it looks good for axies but I've read somewhere else that sand this fine wouldn't settle in a fish tank due to the constant movement of the water, what do you think about it? Has anyone had silica sand of any of these two sizes?

 

[Luca1980]

Both look like a bad idea to me. Play sand, pool filter sand or beach sand are your best bet.

 

[Kizu]

Both look like a bad idea to me. Play sand, pool filter sand or beach sand are your best bet.

I could try looking for something in between, the seller also sells silica sand of "00 to 03" granulometry, which I think might refer to the milimeters of the grains