HOMEGROWN PONICS   Zym Bac # 96045 Natural Beneficial Bacteria， 8 oz.</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Starts the biological filtration & nitrogen cycle</li><li>Contains naturally occurring， cultured bacteria</li><li>Rapidly seeds biological filters</li><li>Corrects ammonia & nitrite imbalances</li><li>Improves water conditions</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/41YXXcAfN0L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31zK%2BIJ%2B6tL.jpg' noproxy></br>