More sand or not for Goby/Shrimp pair?

[AllAmericanReefs]

Hi, below is a link to the Reddit thread that shows the video of my sand bed. But I have 10 pounds of sand in my 20 gallon cube at the moment. The sand bed ranges from about 1/2 inch to an inch, and I’m wondering if that is enough sand for a Orange Stripe Prawn Goby and Tiger Pistol Shrimp pair?

 

[blaxsun]

It should be, yes.