Congrats on post #2k. Also, i'd maybe just stick some vals and green wendtii in there, especially if the rocks are sitting in-between the two front to back. It'd save you some change on CO2, too.
Haha, I didn't even realize that was my 2000th post.
I forgot to put CO2 in my first post. I actually have 2 needle valves so I may go with both an inline diffuser and an in tank diffuser since I have both, as well as the ability to run both. Done it before and it works well.