I was in Petco yesterday, and I recall that a large portion of their plants were not aquatic plants at all- Mondo grass, various garden variety plants - I was surprised. I see the same in Petsmart to a lesser degree in the loose plants they keep in the tanks. The bottled ones in Petsmart, however, were clearly labeled as "True Aquatic" or Semi-Aquatic" (which is a falsehood, too) the semi aquatics would be fine for terrariums, perhaps ripariums.