Damselfish digging up sand?

Hey everyone,

My blue devil damselfish suddenly began to stir up my sandbed. And my makes my water all milky (sandy) and its rather annoying. He also sometimes knock my corals over on the sandbed, like my torch which i just recently put down on my sandbed (Its doing great by the way) but he almost knocked it over, due to the gigantic hole he dug right behind it. I'm 100% its the damsel, because i have seen him do it. He goes down the sandbed, and just wiggles his tail around, and dances around, almost like a mating dance. My sand is very fine, so it will go everywhere. He is a real beast. Is this a mating behaviour or is this fish just crazy or something?

 

Some damsels just prefer to "personalize" their territory; my yellowtail does the same thing (thankfully I have CC, so no sand storms. lol).

 

FYI - I would personally not keep a Euphyllia frag on the sandbed. Sand can really irritate them, especially if the entire frag gets knocked into the bed.

 

Okay, guess im gonna move it soon Hope to get a rock where it can be, but its hard to find any spots in my tank for corals, they're all filled with kenya tree frags and other different corals hehe Its doing fine for now though, i'll move it soon then