Thanks for the feed back. I actually have 4 females and 2 males in there. So they are some lucky boys. The gravel is made for plants. And there is a T5 cadlights fixture made for reefs on top with 4 bulbs. co2 is the only thing I have not covered. I have never had luck with java moss sticking to rocks so I just planted it. I found the rock in my excavations in Texas and thought it was a nice piece so I lugged it home. Also it is hard to see but as a background I ripped some thick bark off a dead tree which gives it a nice natural look from behind.
The rhizome is the thick horizontal root that the leaves sprout from with the finer roots hanging below it. Only the fine roots should be buried in the gravel.
Here's a pic. The rhizome is the thick part between the red lines. Sorry for my poor skills with paint.