DevinWolfe: Thanks! I've tried different positions, but the tank is only 12.5" wide and that is one HUGE piece of driftwood! The only other way it will fit is if i put it completely upside down..
Vladdy: Haha, I posted the pterodactyl picture shortly after posting the new thread. I've had that driftwood for months and I JUST realized this!
husonfirst: Yes, of course I'll be adding substrate. I can't have a nice carpet without substrate, now can I! I have sand ready, but I'm considering trying something else. I've been able to grow many plants in this sand--I just added root tabs.