I have 4 GBRs (1 M, 3 F) in hopes if getting a pair. For the past several hours, a couple of them have been hanging out in the front corner of the tank digging up the sand. I did a quick google on this and it seems they may be getting ready to lay some eggs. I thought they laid eggs on a flat surface, and there's a nice flat rock not more than 6 inches away
The Rams are using their bodies to dig. It's actually quite interesting. I captured a clip.
Ram Video

Ram Video