Wayne Sallee wrote:
Also it's best to put base rock on the glass, and put the calcium based
sand around the base rock, and then stack the live rock on top of the
base rock. If you just pile up the live rock on top of the sand, then
when things start to dig in the sand, you will have an avalanche.

My Lawnmower Blenny is a voracious digger. He also filled up a cave
with sand to build his own personal space. Everything but a mail box.

He does a little dance in front of the glass every night. My kids call
it his break dance because he flips around. They are working on queuing
up a song on the computer, so he can do it music.

Ugly thing, but they definitely grow on you.

btw, welcome to the hobby. Hopefully, you've been warned that it is
addicting.

--Kurt (currently acclimating a purple xenia)