Daltar,

I'd seen your tank around the forums before I decided to post.
It looks very attractive and was actually planning on using it as somewhat of a model for mine until I got my 40 gal breeder.
Are those things at the bottom hydroton balls? What do they do exactly? And are they necessary? I may pick some up for the land 2/3rds of my 40 if the benefits are high enough.

There's just SO much to learn!!