1” Horticultural Red Lava Cinders are naturally formed, pH neutral basaltic stone from northern Arizona that make an ideal growing medium for aquaponics. It is screened and sized from ½” to 1″ and has a maroon to burgundy color and contains some fines that pass through, from 10 – 20%. Like other volcanic rock, lava cinders have lots of pores resulting from expanding gasses when the stones are formed. These pores provide the perfect habitat for beneficial microbes to grow. Cinders are a less expensive alternative to expanded clay or pumice. It is denser and will not float providing a more stable medium for growing plants.
Acme Sand & Gravel
7777 E 22nd Street Building 3
Tucson, Arizona 85710-6434
(520) 296-6231
Store hours:
Monday – Friday 7:00 – 4:00
Saturday – 7:00 – 2:00
* Please arrive 10 minutes before closing, to allow for weighing and loading time.
** Because of all the types, sizes and weight of our products, please purchase wisely. If you’re not exactly sure of the specific product you want, bring a sample of your material to compare that colors and sizes match. We do not offer refunds or returns on bulk materials.
