You can create perfect copies of any original Sea Sponge model using mold rubber and liquid plastic. Using different colors, you can create a limitless variety of casting effects to make plastic Sea Sponge display pieces that are one-of-a-kind and unique to your aquarium.
Advantages/Benefits to Making Your Own Custom Sea Sponge:
Will last indefinitely
Eliminates reef harvesting
Aquarium-safe (will not harm fish, invertebrates or other sea life)