DrTim's Aquatics Eco-Balance Multi-Strained Probiotic Bacteria for Reef and Nano Aquarium， 64-Ounce</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Adds friendly， supportive bacteria to maintain a balanced environment</li><li>Probiotics against Vibrios</li><li>Blocks out unfriendly bacteria</li><li>100% natural</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/51QxOGDs49L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31KL84sCwiL.jpg' noproxy></br>