---
product_id: 158546325
title: "MI0512 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)"
brand: "asrnten"
price: "S$27"
currency: SGD
in_stock: true
category: "Asrnten"
url: https://www.desertcart.sg/products/158546325-mi0512-1-5-rockwool-starter-plugs-for-hydroponics-rockwool-grow
store_origin: SG
region: Singapore
---

# Sterile, organic rockwool medium 20% air space for moisture balance 1.5” compact cube size MI0512 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small)

**Brand:** asrnten
**Price:** S$27
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your grow game with precision and purity!

## Quick Answers

- **What is this?** MI0512 1.5” Rockwool Starter Plugs for Hydroponics, Rockwool Grow Cubes, 1 Sheets of 28 Plugs (Small) by asrnten
- **How much does it cost?** S$27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/158546325-mi0512-1-5-rockwool-starter-plugs-for-hydroponics-rockwool-grow)

## Best For

- asrnten enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Stable:** High-density rockwool maintains shape through watering and transplanting stress.
- • **Clean & Organic Growth:** Sterile, inorganic medium reduces contamination risk, ideal for hobbyists and pros alike.
- • **Precision Seed Starting:** Predrilled holes simplify sowing and propagation for flawless germination.
- • **Optimal Root Environment:** Balances moisture retention with 20% air space to accelerate healthy root growth.
- • **Versatile Hydroponic Fit:** Perfect 1.5” cubes designed for seamless integration into hydroponic and greenhouse setups.

## Overview

The MI0512 1.5” Rockwool Starter Plugs offer 28 sterile, high-density cubes engineered for superior seed starting and hydroponic propagation. Each cube’s predrilled hole and balanced air-water retention create an optimal root zone, ensuring vigorous plant development. Designed for both hobbyists and commercial growers, these durable, organic rockwool plugs maintain shape and moisture, making transplanting effortless and efficient.

## 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

- Premium Rockwool Growing Medium: Sterile rockwool cubes designed for seed starting, rooting cuttings, plant propagation, and hydroponic growing.
- Easy Seed Starting: Predrilled planting holes make sowing seeds and propagating plants simple and convenient for home gardeners and commercial growers.
- Excellent Water & Air Balance: Provides approximately 20% air space when saturated while retaining moisture to help maintain a healthy root environment.
- Durable Structure: High-density rockwool helps maintain cube shape during watering and transplanting while providing consistent support for developing roots.
- Convenient Size: Each cube measures 1.5" × 1.5" × 1.5", suitable for hydroponic systems, seed germination, propagation, and greenhouse growing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VYKNGRW |
| Best Sellers Rank | #77,341 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #62 in Hydroponic Growing Media |
| Brand Name | Asrnten |
| Capacity | 1.5 inches |
| Color | Brown |
| Customer Reviews | 4.2 4.2 out of 5 stars (4,288) |
| Finish Types | Unfinished |
| Included Components | Tray |
| Indoor Outdoor Usage | Outdoor |
| 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 |
| Item Weight | 0.14 kg |
| Manufacturer | MI0512 |
| Manufacturer Part Number | 56 |
| Material Type | ROCKWOOL |
| Model Number | 56 |
| Mounting Type | Floor Standing |
| Number of Levels | 28 |
| Number of Pieces | 28 |
| Other Special Features of the Product | organic |
| Pattern | Solid |
| Plant or Animal Product Type | Lemon |
| Planter Form | Plant Pot |
| Product Style | Modern |
| Shape | Cube |
| Size | Small |
| Theme | Gardening |
| Unit Count | 1 Count |

## Product Details

- **Color:** Brown
- **Material:** ROCKWOOL
- **Planter Form:** Plant Pot
- **Special Feature:** organic
- **Style:** Modern

## Images

![MI0512 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/61FjunmyyxL.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 Singapore*
*Store origin: SG*
*Last updated: 2026-10-01*