SubstrateSource "Marimo Log" Aegagropila Algae on Cholla Driftwood Live Freshwater Aquarium Decoration</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Living freshwater aquarium decoration</li><li>Ready to add to your aquarium</li><li>Adds to biological filtration (nutrient export)</li><li>Natural grazing site for shrimp and fish</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41RPCZAGHXL.jpg' noproxy></br>