that seems right. i have seen some others placed like that, but i wasnt sure if they were glued to the LR ther were next to. It moved in the night, so I will try putting the bottom in the sand bed when I relocate it. Also, I got about a 1/2" piece of ricordea and I wasn't sure how to secure it. I didn't have any netting handy, so I used some floss and tied it to a rock very loosely. it seems to have wandered off as well. anyone know how i can secure such a small piece better w/o hurting it?