Rated 4.1 out of 5 by 57
Rated 1.0 out of 5.0 by Jeremy Not for Hydroponics!
If you're looking for a grow media for a flood and drain hydroponics/aquaponics system keep looking. 99.9% of these chinese pellets float. I bought three 50L bags and there were only about a dozen pellets that sank. I tried power washing them, soaking them for a week, vinegar/peroxide baths you name it. Make sure you keep your receipts as you'll be returning because of frustration.
June 7, 2016
Rated 5.0 out of 5.0 by Rudger Value Purchase
Shipped quickly and product is as advertised. Looking forward to finishing my agriponics project.
July 4, 2016
Rated 3.0 out of 5.0 by bh62 hydroponic rock
I gave these volcanic stones a 3, well because they're rocks. Anyway they seem to do well and are relatively the same size. Be careful though as these rocks do float.
July 5, 2016
Rated 5.0 out of 5.0 by Aboors Works perfect
If you're starting a hydroponic garden you must buy this stone. It works perfect for growing plants fast. Only downside is you have to wash it off several times bc it's dirty and will pollute your water and mess up the pH
May 31, 2016
Rated 5.0 out of 5.0 by PatioPepperBoy great product for gardening
Grow rock provides the best drainage for growing chili peppers. My 4x7ft container pepper garden already has over a bushel of growing peppers. Home Depot has the best gardening supplies in town.
June 30, 2015
Rated 1.0 out of 5.0 by ed not for aquaponics
This product floats in water and it is not pH neutral. Both make this very unsuttable for aquaponics. Wasted my money.
February 24, 2016
Rated 4.0 out of 5.0 by RockRiver As Expected
This stuff was what it should be & for a reasonable price. I used 200 Lbs which filled one Aquaponics bed. I have two others to do and will use this again. Compared to other product prices this was the best I could find for the amount ordered & it was delivered quickly by UPS & no shipping charge.
It does need to be rinsed before using but that was easy after developing a decent method.
May 27, 2014
Rated 5.0 out of 5.0 by Jan1 Great product! Great deal!
I use this product to add to my potting soil and to root some of my Hoya cuttings. The some of my Hoya cuttings rooted less then 2 weeks. I use this product for semi hydro planting on my orchids too. Great product! Great deal!
September 3, 2013