We looked at them at the Aquarium but they were 5 to 8 dollars a piece, depending on if they were on sale. They usually have RCS, yellow and a few colors of bees which can go up to 10.00/12.00 a piece. For that high of a price, the colors aren't that bright on them.
I love the aquarium but sometimes the prices are just outrageous.
On a side note, I can't wait to make it into Knoxville to see if Petsmart and Petco are selling plants!!