Carib Sea ACS00832 Peace River Gravel for Aquarium， 20-Pound</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>re-create natural river eco systems</li><li>ph neutral ; safe for all aquarium systems</li><li>grain size reduces detritus build up</li><li>no paint or dyes used</li><li>made in the USA</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/51n1lOUDx%2BL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51ubRLVC4LL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/312SIV0yu8L.jpg' noproxy></br>