---
product_id: 112838098
title: "Grodan 1.5\" Rockwool Mini Blocks – 45 Pack Rockwool Cubes for Hydroponics, Seed Starter & Cloning + Twin Canaries Chart"
brand: "twin canaries liquid volume conversion chart"
price: "¥8619"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/112838098-grodan-1-5-rockwool-mini-blocks-45-pack-rockwool-cubes
store_origin: JP
region: Japan
---

# optimal air-water balance for roots 1.5" perfect seed starter size pre-cut, ready-to-use convenience Grodan 1.5" Rockwool Mini Blocks – 45 Pack Rockwool Cubes for Hydroponics, Seed Starter & Cloning + Twin Canaries Chart

**Brand:** twin canaries liquid volume conversion chart
**Price:** ¥8619
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Grodan 1.5" Rockwool Mini Blocks – 45 Pack Rockwool Cubes for Hydroponics, Seed Starter & Cloning + Twin Canaries Chart by twin canaries liquid volume conversion chart
- **How much does it cost?** ¥8619 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/112838098-grodan-1-5-rockwool-mini-blocks-45-pack-rockwool-cubes)

## 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

- • **Root-Boosting Aeration:** Advanced rockwool fibers optimize oxygen and moisture for explosive root growth
- • **Mess-Free, Ready-to-Use:** Uniform pre-cut cubes eliminate guesswork—just soak, plant, and watch thrive
- • **Precision Propagation Power:** 1.5" mini blocks engineered for flawless seed, clone, and cutting starts
- • **Hydroponic & Soil Versatility:** Seamlessly supports hydroponics, aquaponics, and traditional gardening setups
- • **Effortless Transplant Transition:** Move plants to larger Grodan blocks without root disturbance for uninterrupted growth

## Overview

Grodan 1.5" Rockwool Mini Blocks are premium pre-cut cubes designed for hydroponics, aquaponics, and soil gardening. Engineered to maintain ideal air-to-water ratios, they promote healthy root development and nutrient uptake. Perfectly sized for seeds, clones, and cuttings, these ready-to-use blocks simplify propagation and enable seamless transplanting to larger Grodan substrates.

## Description

Grodan 1.5" Rockwool Mini Blocks – 45 Pack Rockwool Cubes for Hydroponics, Seed Starter & Cloning + Twin Canaries Chart

## Features

- Rockwool Cubes for Easy Propagation – 1.5" Grodan Mini Blocks are the perfect size for starting seeds, clones, and cuttings, giving roots a healthy start in a stable environment.
- Rockwool for Hydroponics & More – Designed for hydroponics, aquaponics, and soil-based gardens, these versatile cubes deliver consistent results for hobbyists and professional growers alike.
- Superior Root Aeration & Drainage – Engineered rockwool fibers maintain the ideal air-to-water ratio, preventing overwatering while boosting root growth and nutrient uptake.
- Clean, Convenient & Ready to Use – Uniform pre-cut blocks make planting simple and mess-free—just soak, plant, and grow with confidence.
- Seamless Transplanting – Start in Mini Blocks and easily move plants into larger Grodan rockwool cubes, blocks, or slabs without disturbing roots.

## Product Details

- **Material:** Rockwool
- **Special Feature:** organic
- **Shape:** Rectangular
- **Indoor/Outdoor Usage:** Indoor, Outdoor
- **Product Dimensions:** 1.5"D x 1.5"W x 1.5"H

## Images

![Grodan 1.5" Rockwool Mini Blocks – 45 Pack Rockwool Cubes for Hydroponics, Seed Starter & Cloning + Twin Canaries Chart - Image 1](https://m.media-amazon.com/images/I/81AvP0IVM8L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: should cubes be presoaked in just water or starter solution**
A: i just soaked mine in water, but a combination of both probably won't hurt.

**Q: should I cut the wrapper before planting in soil?**
A: Yes cut the wrapper off the roots will protrude out the bottom and sides

**Q: What is the dimensions of each cube**
A: 1.5" x 1.5"

**Q: how long should presoak these cubes**
A: I only soaked mine for 5-10 mins if that. Hope this answer helps.

## Frequently Bought Together

- Grodan Rockwool Starter Mini-Blocks | 1.5" Blocks - Pack of 45 | + Twin Canaries Chart
- HydroDynamics Clonex Rooting Compound, 100 ml
- Grodan Rockwool Delta GRO Blocks | 4" Cube - Pack of 6 | + Twin Canaries Chart

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/112838098-grodan-1-5-rockwool-mini-blocks-45-pack-rockwool-cubes](https://www.desertcart.jp/products/112838098-grodan-1-5-rockwool-mini-blocks-45-pack-rockwool-cubes)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-24*