I have a juvenile engineer goby and a juvenile yellowtail damsel. My goby has a nice "house" established in the sand. I just noticed my damsel try to get into the goby's house and swipe at him. The goby's "sand fortress" is now totally destroyed and the goby is hiding way back. The damsel gave up after I went and stared at him, but I'm really afriad for my little goby. I'm going away on vacation and don't want him to kill the goby while I'm away. Tempted to jsut take him back to the LFS, what does everyone think?