Nope, they can't. Must be a typo. And yes, Aquilon is as awesome as a BS can be. (do note that I never had one, nor do I like caps, but if I were to buy one, prolly it'd be the Aquilon)
Oops, I meant the Mortar and not Light Mortar. It's good since it doesn't drain your plant like Heavy Mortar does, which I don't think anyone uses anyway.