Christmas Moss - Live Aquarium Aquatic Plant for Fish Tank Each portion 2 by 2 inches (5 by 5 cm) When grown attached to driftwood or rock, it forms triangular fronds in the shape of Christmas trees Great natural hideout for fish fry Able to withstand a great variety of water conditions Attach to wire mesh /rock / driftwood to keep the moss in the desired place. Else, it could be floating around