Just finished aqua scaping a 16.8 US gallon for some shell dwellers. Needed some advice as I'm unsure if aquarium is level and if the way it's filled matters so much? Here are some pics.
http://imageshack.us/g/193/p1020380q.jpg/
http://imageshack.us/photo/my-images/231/p1020384r.jpg/
http://imageshack.us/photo/my-images/193/p1020380q.jpg/
http://imageshack.us/photo/my-images/12/p1020385m.jpg/
