Leca Clay Orchid/Hydroponic Grow Media - 4 lbs.<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Made of 100% natural clay. Pebbles are of uniform， round shape. Inert， pH-neutral， clean and decorative. Comes in a 2 lbs. package.</li><li>For Orchids - porous structure provides excellent aeration and acts as a water reservoir.</li><li>The size of the pebbles is perfect for medium to large Cattleyas and Laelias.</li><li>For Hydroponics - Ensures good root aeration and prevents rotting， excess acidity and soil pests.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51fMBYlo1NL.jpg" noproxy>