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The following products on this page are NOT included in AHL's Free Shipping program:

    • rockwool cases (cubes, slabs or bags of mini cubes) and bales
    • individual rockwool slabs
    • 3 cubic ft bags of Perlite and Vermiculite
    • 2 cubic ft bags of Large Grain Perlite
    • 22.5 liter or 45 liter grow rocks
    • Growstones
    • coconut fiber cases and bags
    • cases of Oasis Cubes


Growstones are a breakthrough substrate environmentally engineered from 100% recycled glass, now made locally right here in Albuquerque! While other substrates maximize either aeration or moisture, Growstones are designed to maintain the proper air and water balance in the roots without the danger of overwatering.

Growstones deliver higher oxygenation of roots than rockwool as well as better water retention than perlite making them a superior substrate without the environmental issues of other available products.

  • Growstones Hydroponic Medium, 1.25 cubic feet bag
  • Growstones Soil Aerator 1 cubic foot bag

For more information on Growstones, please visit their web site:


Grodan Rockwool

Rockwool is volcanic rock that has been superheated to a molten state, then spun into fibers. The fibers are then compressed into cubes or slabs, or shredded into a granulated form. Rockwool offers an excellent balance of air and water for your plants' roots.

For more information on Grodan Rockwool and tons of great tips on hydroponic gardening, visit their web site, Hydroponics 101.

Grodan Rockwool Starter Cubes

Available in three choices:

  • AO 36/40: 1"x1"x1" sheet of 98
  • AO 36/40: 1"x1"x1" case of 2940
  • AO 36/40: 1"x1"x1" sheet of 49
  • AO 50/40: 2"x2"x1" sheet of 50
  • AO 50/40: 2"x2"x1" sheet of 25
  • AO 50/40: 2"x2"x1" case of 1500
  • MM 40/40: 2"x2"x1" wrapped
  • MM 40/40: 2"x2"x1" wrapped, pack of 45
  • MM 40/40: 2"x2"x1" wrapped, case of 2250
Grodan Rockwool Grow Blocks

Are available in three choices:

  • DM 4: 3"x3"x2.5" with precut hole (for transplanting starter cube and seedling), $0.79 each
  • DM 4: 3"x3"x2.5" with precut hole, case of 384
  • DU 4: 3"x3"x2.5" WITHOUT HOLE
  • DU 4: 3"x3"x2.5" WITHOUT HOLE, case of 384
  • DM 6: 4"x4"x2.5" with precut hole
  • DM 6: 4"x4"x2.5" with precut hole, case of 216
  • DM 10: 4"x4"x4" with precut hole
  • DM 10: 4"x4"x4" with precut hole, case of 144
  • Hugo: 6"x6"x6" with precut hole
  • Hugo: 6"x6"x6" with precut hole, case of 48
Grodan Rockwool Slabs

Available in the following sizes:

  • HIP 15/75: 6"x36"x3"
  • IP 15/100: 6"x36"x4"
  • HIP 20/75: 8"x36"x3"
Grodan Rockwool Mini Cubes

These little baby rockwool cubes are a great disposable alternative to grow rocks. Even when grow containers are filled with mini cubes, there is lots of air space between the individual cubes.

  • Rockwool Mini Cubes, 1 cubic ft bag
  • Rockwool Mini Cubes, 2.0 cubic ft bag
Grodan Granulated Rockwool
  • Absorbent Rockwool Bale (13.4 cubic ft)
Miscellaneous Rockwool Supplies

Sunleaves Rockwool Cube Covers fit on top of 4" rockwool blocks, or can be cut to fit 3" blocks. They prevent light from reaching the surface of the cube to reduce messy algae growth. 

  • Sunleaves Rockwool Cube Covers, pack of 40

Hydrofarm Rockwool Cube Covers fit on top of 6" Hugo rockwool blocks. They prevent light from reaching the surface of the cube to reduce messy algae growth. 

  • Hydrofarm Rockwool Cube Covers, pack of 40

Plant!T Grow Rocks

Plant!T grow rocks are made of clay that is heated in a furnace until it expands and fills with air. Grow rocks are lightweight, porous, and reusable. Since they are made just for horticultural use, they require no pretreatment and will not react with nutrient solutions.

  • Plant!T Grow Rocks 8 Liter
  • Plant!T Grow Rocks 20 Liter
  • Plant!T Grow Rocks 40 Liter


Perlite is puffed sand and can be used as a hydroponic medium for small, lightweight crops such as lettuce. Perlite is often added to a soil mix to improve drainage and aeration.

  • Perlite 0.75 cubic ft (5 gallons)
  • Perlite 3.0 cubic ft (20 gallons)
  • Perlite 6.0 cubic ft (40 gallons)   IN-STORE ONLY

Large Grain Perlite

This large-grain horticultural perlite is a favorite of orchid growers and can be added to a soil blend for maximum aeration. Large Grain perlite also works great as a stand-alone hydroponic medium or blended with coconut fiber.

  • Large Grain Perlite 2.0 cubic ft (13 gallons)
  • Large Grain Perlite 4.0 cubic ft (26 gallons)   IN-STORE ONLY


Vermiculite is puffed mica. Each piece can hold many times its own weight in water, so this medium is often used to increase moisture retention in a soil mix. Vermiculite can be used as a medium for cuttings, but is not usually used by itself as a hydroponic medium.

  • Vermiculite 0.75 cubic ft (5 gallons)
  • Vermiculite 3.0 cubic ft (20 gallons)
  • Vermiculite 6.0 cubic ft (40 gallons)   IN-STORE ONLY

Coconut Fiber

Coconut fiber is a fairly new growth medium, but its popularity is growing quickly because of its impressive results and versatility. The fiber holds lots of moisture while also permitting excellent aeration and drainage. The coconut's natural rooting hormones promote excellent root development—a wonderful medium for cuttings! Coconut fiber can be used by itself, or blended with some combination of soil, perlite and/or vermiculite. In hydroponic systems, the fiber is usually blended with grow rocks. Coconut fiber shares similar properties with peat moss, but the coconut fiber (a by-product of coconut processing) is a totally renewable resource! Sold as a compressed brick or larger block—soak in water to expand compressed coconut into loose fiber medium. Individual bricks make about 2 gallons of medium, while the larger block makes 18-21 gallons.

  • Coconut Fiber 1 brick
  • Coconut Fiber Case of 24 bricks
  • Botanicare Large Block
  • Cocotek Grow Mat 4'x8'x1/8"
  • Coco-can Croutons (organic alternative to grow pellets and rocks), 28L bag
  • Botanicare CocoGro Loose Coconut Fiber 1.5 Cu Ft
  • CANNA Coco 50 Liter

Jiffy Pellets

Jiffy Peat Pellets expand when wet to form a contained ball of peat moss. Easy to use and excellent for starting seeds or cuttings.

  • Jiffy Pellets each
  • Jiffy Pellets case of 1000

Rapid Rooters

These amazing new products from General Hydroponics are plugs made from composted tree bark. Beneficial microorganisms occur naturally from the composting process, and they help give your new roots the boost they need for success. Rapid Rooters are wonderful for cuttings/clones as well as for seed propagation. Sold as a Starter Set of 50 plugs in a propagation tray with specially designed insert, or as a Refill Bag of 50 plugs. The Rapid Rooter Mat is 98 connected cubes sized to fit a standard propagation tray.

  • Rapid Rooter Starter Tray Set
  • Rapid Rooter Refill Bag
  • Rapid Rooter Mat

Oasis Cubes

Made from a special foam that promotes excellent air/water balance, Oasis Cubes are excellent for starting seeds or rooting cuttings. Since pH is already in the proper range, no pre-treating or conditioning is required when using Oasis Cubes. Oasis Cubes are either 1.5" x 1.5" or 1.5" x 1.25" and are sold by the half sheet, full sheet or case.

  • Oasis Cubes 1.5" x 1.25" half sheet (52 cubes)
  • Oasis Cubes 1.5" x 1.25" full sheet (104 cubes)
  • Oasis Cubes 1.5" x 1.25" case (2080 cubes)
  • Oasis Cubes 1.5" x 1.5" half sheet (25 cubes)
  • Oasis Cubes 1.5" x 1.5" full sheet (50 cubes)
  • Oasis Cubes 1.5" x 1.5" case (1000 cubes)



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