---
product_id: 467520475
title: "1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)"
brand: "mi0512"
price: "C$3513"
currency: NIO
in_stock: true
category: "Mi0512"
url: https://www.desertcart.ni/products/467520475-1-5-rockwool-starter-plugs-for-hydroponics-rockwool-grow-cubes
store_origin: NI
region: Nicaragua
---

# 1.5” perfect cube size 20% air space for oxygenation Sterile, inorganic & pH neutral 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)

**Brand:** mi0512
**Price:** C$3513
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your hydroponic game with rock-solid roots!

## Quick Answers

- **What is this?** 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) by mi0512
- **How much does it cost?** C$3513 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/467520475-1-5-rockwool-starter-plugs-for-hydroponics-rockwool-grow-cubes)

## Best For

- mi0512 enthusiasts

## Why This Product

- Trusted mi0512 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Oxygen-Rich Growth:** 20% air space ensures roots breathe easy for rapid development.
- • **Clean & Chemical-Free:** Sterile, inorganic medium eliminates soil-borne risks and contamination.
- • **Effortless Propagation:** Predrilled holes simplify seeding and cloning—grow like a pro with less hassle.
- • **Precision Rooting Power:** Firm 1.5” cubes hold shape for flawless seed starts and cuttings.
- • **Trusted Support & Guarantee:** 24-hour responsive seller support plus 100% money-back promise—risk-free growth.

## Overview

These 1.5-inch Rockwool Starter Plugs provide a sterile, inorganic growing medium optimized for hydroponic seed starting and cloning. Featuring 20% air space for superior oxygen retention and firm structure to maintain shape, they accelerate root growth while simplifying propagation. Ideal for both hobbyists and commercial growers, they come with predrilled holes and a responsive seller guarantee for a worry-free planting experience.

## Description

SPECIFICATIONS Size: 1.5”W x 1.5”D x 1.5”H Quantity: 28cubes Package: 1 Sheet ADVANTAGE Firm: hold their shape well and do not fall apart Breathable: retaining plenty of oxygen for rapid plant growth Aseptic production: Inorganic and sterile growing medium better than soil Water & nutrient retention: retains a lot of water and nutrient solution Suitable for hobby or commercial growers WARM TIPS 1.Wear gloves/glasses while handling 2.Don't try to tear the product - cut it Please Note : To Soak , simply dig plug briefly (10 sec) in a starter solution adjusted to pH 5.5 using pH down either or a lemon ,Do not squeeze the plug How to transplant rock wool block Once the you see about 0.5-1" of root growth below the plug, it is time to transplant. They can go straight into the big rockwool hole, as they do not have any wrapping on them. Your best bet is to transplant the starter plug into a 3" or 4" . WHY? It is much easier to control the moisture level in a 3"-4" than a larger block. Just wait until the block feels really light before you water. Smaller blocks like these will keep an even moisture level in the entire block. Rule of thumb: water 15 minutes before the block goes dry. If you transplant into bigger blocks: It is essential to keep the upper part of the block moist by misting or watering sparingly.

## Features

- Inorganic & Sterile Growing Medium, great for Rooting Cuttings clone plants, germination start seeds and more. Encourages Faster Initial Rooting & Its Firmness Is Guaranteed
- Much easier than starting in soil! Predrilled planting holes make seeding and plant propagation a breeze. Great for hobby and commecial growers
- Provides 20% Air Space When Saturated - Absorbs nutrient solution while retaining plenty of oxygen for rapid root growth!
- Made from good selection of natural rocks, neutral pH and sterile. Cubes Measure:1.5" x 1.5" x 1.5"
- SELLER WARRANTY - Any support you need please email us via your order page, we'll respond to your request within 24 hours, and we promise 100% fund back if you do not like it, WHY NOT HAVE A TRY?

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VYKNGRW |
| Best Sellers Rank | 354,637 in Garden ( See Top 100 in Garden ) 99 in Gardening Rockwool 4,319 in Hydroponics (Garden) |
| Brand | MI0512 |
| Capacity | 1.5 inches |
| Colour | Brown |
| Date First Available | 31 July 2019 |
| Item Weight | 140 g |
| Material | ROCKWOOL |
| Model Number | 56 |
| Product Dimensions | 3.81 x 3.81 x 3.81 cm; 140 g |
| Special Features | Air Purification |

## Product Details

- **Colour:** Brown
- **Material:** ROCKWOOL
- **Planter form:** Plant Pot
- **Special feature:** Air Purification
- **Style:** Modern

## Images

![1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) - Image 1](https://m.media-amazon.com/images/I/41SVXs9KyjL.jpg)
![1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) - Image 2](https://m.media-amazon.com/images/I/41VwWg-IIvL.jpg)
![1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) - Image 3](https://m.media-amazon.com/images/I/51-LgZ1QsHL.jpg)
![1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) - Image 4](https://m.media-amazon.com/images/I/514Oo4ZufPL.jpg)
![1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) - Image 5](https://m.media-amazon.com/images/I/51DZW2tGhCL.jpg)

## Questions & Answers

**Q: After the seed sprouts can you put into the cup**
A: If you were careful you may be able to but you should really use this to sprout the seeds if possible.  I did put a clone in one with success but you will need to make the hole in the top of the cube a bit larger first.

**Q: do these ever expire?**
A: It won't expire, but you can try planting as soon as possible, which will be very effective. Do not place in direct sunlight.

**Q: If using for germination can you plant right into soil after sprouting or do you somehow have to remove from cube?**
A: No, plant directly into the ground and let it grow.

**Q: Will these fit my Lettuce Grow farmstand?**
A: It did not work for me,

## Frequently Bought Together

- MI0512 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)
- VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-27*