Fish and corals not getting along

[gquimby1]

My clown and my damsels keep burrowing in the sand and I do mean non stop and they're kicking up sand all over my rock and corals and it's keeping the corals closed plus it just looks like crap. Any advice?

Why are they doing that?

 

[GrantH]

In my limited experience, some damsels burrow out places to sleep. I have a blue damsel that has dug up all the sand under a number of rocks, to the extent that I can see the fish by looking up at the bottom of my tank! My clownfish stay above the sand though


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[Grkgod36]

My clownfish whips his tail real hard back and forth making sand craters . And does that sometimes when he's mad