I had all the rocks stacked nice and as high as I could. I had a nice bunch of sargassum floating at the top right under the full spectrum lights. Seemed nice. Then the big hermit crabs took over. A bunch of hoodlums! They knocked over ALL the rocks, even the big heavy ones! Not sure how they were able to do that. I come home from work today and they have the sargassum on the botton holding on to it like it is the grand prize! They were all munching on it like crazy. There was no way for them to get it, as I had the wavemaker off and it was floating high. One of the hermits had to have climbed up the air hose, grabbed the sargassum and pulled it to the botton. Then it was party time! I am kinda enjoying the crazyness, but I can't take it for much longer. Already driving me crazy!