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Agra Wool | Hydroponic Blocks | 38mm Hole | 224pcs | 7.5x7.5x6.5cm

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Agra Wool | Hydroponic Blocks | 38mm Hole | 224pcs | 7.5x7.5x6.5cm

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Product information

Key specifications

Dimensions
7.5 × 7.5 × 6.5 cm
Width
8
Material
Basalt fibre
Height
7
Diameter
38 mm
Show all specifications

Product description

Agra-Wool Starting Blocks - Box 224 pieces (7.5 × 7.5 × 6.5 cm, hole 38 mm)

Professional batch for uniform rearing - Ecose® bound, consistent quality

Benefits of the box (224 pieces)

  • Consistency in one cultivation round: uniform block size and water management for predictable results.
  • Efficient & scalable: ideal for nurseries, seed-runs and serious hobby growers.
  • Cost-conscious: attractive unit price with bulk purchase.
  • Sustainable choice: Ecose® binding, formaldehyde-free; safe for user and environment.
  • Rapid rooting: healthy fiber structure with low growth resistance at the root tips.

Specifications

Number per box 224 units
Block size 7.5 × 7.5 × 6.5 cm
Planting hole Ø 38 mm
Material & binding Basalt fiber block, bonded with Ecose® technology (without formaldehyde)
Pretreatment Slight EC precharge; moistening with tap water is sufficient for the start
Application Propagation of cuttings and seeds; usable in hydroponics, recirculation, drip, or as an intermediate step to potting soil/coco
Storage advice Store dry and dust-free; keep boxes closed until use for maximum uniformity
  1. Wetting: saturate the blocks evenly with tap water. Drain excess water.
  2. pH & EC (pro-tip): optional water pH 5.5-6.0; built-in light EC usually eliminates the need for supplemental fertilization in Week 1.
  3. Place: stab or sow in the 38 mm planting hole. Keep temperature/VP-D and light intensity appropriate to the crop.
  4. Manage moisture/oxygen: keep blocks moist, but avoid persistent saturation; this keeps pores of air available for roots.
  5. Scale up: transplant as soon as roots are visible - to larger blocks, pots or the final substrate/cultivation system.

Quality & performance

  • Better rooting: fine, branched roots colonize the block quickly.
  • Stable microclimate: fiber matrix retains water while ventilating for strong starter growth.
  • Safe and comfortable: pleasant to handle, no skin irritation with normal use.

Frequently Asked Questions

Can I use the blocks in an automation line? Yes, the uniform size (7.5 × 7.5 × 6.5 cm) is suitable for trays, tables and simple mechanization. Should I flush the blocks? Not required. Moistening with tap water is sufficient. Many professional growers additionally choose pH 5.5-6.0 water. Which crops are suitable? General use for vegetable, herb and ornamental crops in the propagation stage. What is the best bulk storage method? Store dry, dust-free and unopened until use to ensure uniformity.

Why order bulk at Greendiscounter?

  • Sharp discount prices and reliable stock indication
  • Fast shipping in sturdy outer boxes
  • Customer advice from growers for growers

Pros and cons

  • Pros: The growing medium provides a clear basis for an orderly root zone
  • Pros: The version with dimensions of 7.5x7.5x6.5cm makes the size clear in advance
  • Cons: A suitable watering and feeding strategy remain necessary for an even result
  • Cons: Check in advance whether the size and use suit the chosen growing method

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Technical specifications

Dimensions
7.5 × 7.5 × 6.5 cm
Width
8
Material
Basalt fibre
Height
7
Diameter
38 mm
Main category
Growing media & pots
Subcategory
Propagation supplies
Brand
Agra Wool
Product type
Stone wool starter blocks
Length
8