goto homedepot.com. they will tell you the closest store that has it. here is another brand it is marketed under and the sku # they use Item: Old Castle Stone "Tropical Play Sand"
Sku# 578-819
Approximate Price: $6.99 each
chem- marine makes a stop aiptasia reef safe liquid that you inject into the aiptasia and it kills them. a tank i recently bought has them and i've been picking them off 1 at a time.