---
product_id: 104120705
title: "Grodan 1.5\" Rockwool Starter Mini-Blocks + THCity Stakes (30 Blocks)"
brand: "twin canaries liquid volume conversion chart"
price: "€ 51.57"
currency: EUR
in_stock: true
reviews_count: 8
category: "Twin Canaries Liquid Volume Conversion Chart"
url: https://www.desertcart.sk/products/104120705-grodan-1-5-rockwool-starter-mini-blocks-thcity-stakes-30
store_origin: SK
region: Slovakia
---

# 1.5" uniform mini blocks optimal moisture retention pH neutral & easy prep Grodan 1.5" Rockwool Starter Mini-Blocks + THCity Stakes (30 Blocks)

**Brand:** twin canaries liquid volume conversion chart
**Price:** € 51.57
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your grow game with precision-rooted success!

## Quick Answers

- **What is this?** Grodan 1.5" Rockwool Starter Mini-Blocks + THCity Stakes (30 Blocks) by twin canaries liquid volume conversion chart
- **How much does it cost?** € 51.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/104120705-grodan-1-5-rockwool-starter-mini-blocks-thcity-stakes-30)

## Best For

- twin canaries liquid volume conversion chart enthusiasts

## Why This Product

- Trusted twin canaries liquid volume conversion chart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Convenience:** 30-pack shrink-wrapped for clean, professional-grade propagation
- • **Hydroponic-Ready:** Engineered for NFT, ebb & flow, and DWC systems to maximize yield
- • **Effortless pH Control:** Pre-formed blocks simplify soaking and nutrient uptake management
- • **Fast Root Development:** Lightweight rockwool structure promotes rapid, healthy roots
- • **Precision Seed Starting:** Consistent 1.5" cubes for uniform germination and root growth

## Overview

Grodan 1.5" Rockwool Starter Mini-Blocks are premium, pH-neutral cubes designed for efficient seed starting and cloning in hydroponic setups. Each pack includes 30 uniform blocks that ensure optimal moisture retention and aeration, accelerating root development and simplifying transplanting for both hobbyists and professional growers.

## Description

desertcart.com: Grodan 1.5" Rockwool Starter Mini-Blocks + THCity Stakes (30 Blocks) : Patio, Lawn & Garden

Review: Excellent seed starter - Loved the cubes. Work excellent with clones... will buy again in the near future.
Review: Very useful - Pros: *Pretty easy to use * Great for hydroponics * Will absorb water and nutrients very well. Cons: *Not for starter seedlings or seedling/saplings plants (while attempting root establishing, better to use the smaller starter cubes so that the roots touch walls of rockwool.) * can cause root rot! ( to prevent this, I use clay pebbles as an additional medium in hydroponics.)

## Features

- Rockwool Cubes for Seed Starting – Grodan Mini Blocks 1.5" are high-quality rockwool cubes designed for starting seeds, cloning cuttings, and early plant propagation.
- Ideal for Hydroponic Systems – versatile rockwool cubes for hydroponics provide consistent moisture and aeration, making them a reliable choice for NFT, ebb & flow, and DWC setups.
- Excellent Rooting Environment – lightweight, uniform rock wool planting cubes encourage fast root development and easy transplanting into larger blocks or grow systems.
- pH Neutral & Easy to Use – pre-formed rockwool mini blocks are simple to soak, adjust pH, and plant, giving growers control over nutrient uptake from the start.
- Convenient 30-Pack – each pack includes thirty 1.5" Grodan Mini Blocks, shrink-wrapped for clean handling and ready to use in both hobby and professional grow operations.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MHG22Y6 |
| Best Sellers Rank | #129,485 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #96 in Hydroponic Growing Media |
| Brand Name | Twin Canaries Liquid Volume Conversion Chart |
| Capacity | 0.03 fluid ounces |
| Color | Green |
| Customer Reviews | 4.5 out of 5 stars 449 Reviews |
| Finish Types | Unfinished |
| Included Components | Grodan 1.5'' Rockwool Starter Mini-Blocks |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions | 1.5 x 1.5 x 1.5 inches |
| Item Dimensions D x W x H | 1.5"D x 1.5"W x 1.5"H |
| Material | Cotton |
| Material Type | Cotton |
| Mounting Type | Floor Standing |
| Number of Levels | 1 |
| Number of Pieces | 30 |
| Other Special Features of the Product | organic |
| Pattern | Solid |
| Plant or Animal Product Type | plant |
| Planter Form | Plant Pot |
| Product Style | Modern |
| Set Name | Grodan 1.5" Rockwool Starter Mini-Blocks + THCity Stakes (30 Blocks) |
| Shape | Rectangular |
| Size | 1.5" |
| Special Feature | organic |
| Style | Modern |
| Theme | Gardening |
| Unit Count | 30 Count |

## Product Details

- **Material:** Cotton
- **Special Feature:** organic
- **Style:** Modern
- **Planter Form:** Plant Pot
- **Shape:** Rectangular

## Images

![Grodan 1.5" Rockwool Starter Mini-Blocks + THCity Stakes (30 Blocks) - Image 1](https://m.media-amazon.com/images/I/816-dyhpZHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent seed starter
*by R***H on October 19, 2020*

Loved the cubes. Work excellent with clones... will buy again in the near future.

### ⭐⭐⭐⭐⭐ Very useful
*by S***A on April 22, 2020*

Pros: *Pretty easy to use * Great for hydroponics * Will absorb water and nutrients very well. Cons: *Not for starter seedlings or seedling/saplings plants (while attempting root establishing, better to use the smaller starter cubes so that the roots touch walls of rockwool.) * can cause root rot! ( to prevent this, I use clay pebbles as an additional medium in hydroponics.)

### ⭐⭐⭐⭐⭐ Great Product!
*by D***R on August 10, 2025*

Great Product!

## Frequently Bought Together

- Grodan 1.5" Rockwool Starter Mini-Blocks + Twin Canaries Chart (30 Blocks)
- HydroDynamics Clonex Rooting Compound, 100 ml
- Grodan Rockwool Delta GRO Blocks | 4" Cube - Pack of 6 | + Twin Canaries Chart

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**Shop now:** [https://www.desertcart.sk/products/104120705-grodan-1-5-rockwool-starter-mini-blocks-thcity-stakes-30](https://www.desertcart.sk/products/104120705-grodan-1-5-rockwool-starter-mini-blocks-thcity-stakes-30)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-10-18*