Yellow watchman goby and tiger pistol shrimp pair

[Trevor1]

What type of the sand is the best for the goby and shrimp pair so they can make a nice cave for themselfs

[G1203]

Thicker grain size so when they move the sand it can get murky from the thin sand

[Crystal A]

I think it dosent matter as long as it isn't to big or to fine. I've got regular aragonite crushed coral and let me tell ya that shrimp does nothing but move sand!!! Make sure you rocks are on the bottom cause it will move everything. I always say they need to come with their own back-up beep! Bulldozers.