Is this normal?

[Bhopp2]

So, being a newbie I have no idea what this is (not trying to sound stupid)

. It’s day 3 of my tank and this stuff is here, what is it? Is it normal?

 

[lopez052308]

Looks like air pockets in the sand

 

[Oldreefer44]

Yes it is normal. Nothing is going to happen fast especially with dry rock so sit back, relax and let nature run its course.

 

[Bhopp2]

Yes it is normal. Nothing is going to happen fast especially with dry rock so sit back, relax and let nature run its course.

Thanks, was getting worried something was wrong.