---
product_id: 157941928
title: "Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs"
brand: "jack's classic"
price: "€ 80.23"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/157941928-nutrients-15-5-20-tap-water-soluble-fertilizer-for-lowering
store_origin: NL
region: Netherlands
---

# Water-Soluble Powder 15-5-20 Analysis Mixing Rate Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs

**Brand:** jack's classic
**Price:** € 80.23
**Availability:** ✅ In Stock

## Summary

> 🌿 Feed Your Green Dreams!

## Quick Answers

- **What is this?** Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs by jack's classic
- **How much does it cost?** € 80.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/157941928-nutrients-15-5-20-tap-water-soluble-fertilizer-for-lowering)

## Best For

- jack's classic enthusiasts

## Why This Product

- Trusted jack's classic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hydroponic Hero:** Perfectly designed for continuous liquid feed programs.
- • **Effortless Mixing:** Just mix 13.5 oz in 100 gallons for a powerful feed solution.
- • **Long-Lasting Power:** One 2.2 lbs pack goes further than traditional liquid fertilizers.
- • **Micronutrient Boost:** Packed with essential micronutrients for robust plant health.
- • **Optimize Your Growth:** Achieve optimal nutrient absorption with a pH-lowering formula.

## Overview

Jack's Classic Nutrients 15-5-20 is a premium tap water-soluble fertilizer designed to lower water pH, enhancing nutrient absorption for optimal leaf and root growth. This 2.2 lbs powdered concentrate is perfect for hydroponic systems, providing essential micronutrients without the need for additional feeding.

## Description

Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs

## Features

- 15-5-20 Analysis - Works with city and well water to lower the pH for optimal nutrient absorbtion
- Water-Soluble Powder - Powdered concentrates go further than liquid fertilizers. Simply mix your measured powder with water and you are ready to feed with multiple gallons of liquid fertilizer!
- Mixing Rate - Dissolve 13.5 ounces in 100 gallons of water to achieve a final feed strength of 150 PPM N
- Micronutrients - Added micronutrients supply your plant with the nutrition it needs for optimal growth and health. Unlike other fertilizers, additional feeding is not required.
- Continuous Liquid Feed Program - Intended for use with hydroponic systems. Mixing instructions by volume included.

## Product Details

- **Brand:** Jack's Classic
- **Item Weight:** 2.2 Pounds
- **Item Form:** Powder
- **Specific Uses For Product:** Plant Growth, Root Development
- **Manufacturer:** Jack's

## Images

![Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs - Image 1](https://m.media-amazon.com/images/I/71CbNIhIAhL.jpg)
![Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs - Image 2](https://m.media-amazon.com/images/I/81Gb7whc3WL.jpg)
![Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs - Image 3](https://m.media-amazon.com/images/I/81h6bPiWMqL.jpg)
![Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs - Image 4](https://m.media-amazon.com/images/I/81C2emo2mcL.jpg)
![Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2Lbs - Image 5](https://m.media-amazon.com/images/I/71X-2CutATL.jpg)

## Questions & Answers

**Q: What ph water is best for using this for cannabis and for what stages of growth is it used for ?**
A: you pH your water AFTER you add nutrients and additives.

**Q: Is a calmag supplement needed with this for cannabis? and if so what supplement would you recommend**
A: Yes.. mix the jacks and the mag first and after it's dissolved then at cal...

## Frequently Bought Together

- Jack's Nutrients 15-5-20 Tap Water-Soluble Fertilizer for Lowering Water pH for Leaf and Root Growth in Continuous Liquid Feed Programs, 2.2lbs
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**Shop now:** [https://www.desertcart.nl/products/157941928-nutrients-15-5-20-tap-water-soluble-fertilizer-for-lowering](https://www.desertcart.nl/products/157941928-nutrients-15-5-20-tap-water-soluble-fertilizer-for-lowering)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*