---
product_id: 100665896
title: "1 gal. - KoolBloom - Bloom Maximizer - Hydroponic Nutrient Solution - 0-10-10 NPK Ratio - General Hydroponics 732538"
brand: "general hydroponics"
price: "€ 429.28"
currency: EUR
in_stock: true
reviews_count: 5
category: "General Hydroponics"
url: https://www.desertcart.at/products/100665896-1-gal-koolbloom-bloom-maximizer-hydroponic-nutrient-solution-0-10
store_origin: AT
region: Austria
---

# 1 gal. - KoolBloom - Bloom Maximizer - Hydroponic Nutrient Solution - 0-10-10 NPK Ratio - General Hydroponics 732538

**Brand:** general hydroponics
**Price:** € 429.28
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 1 gal. - KoolBloom - Bloom Maximizer - Hydroponic Nutrient Solution - 0-10-10 NPK Ratio - General Hydroponics 732538 by general hydroponics
- **How much does it cost?** € 429.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/100665896-1-gal-koolbloom-bloom-maximizer-hydroponic-nutrient-solution-0-10)

## Best For

- general hydroponics enthusiasts

## Why This Product

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

## Description

Review: A great PK booster for bloom - A great PK booster for bloom. Start with 5mls per gallon and graduaĺly increase up to 10mls per gallon. 15mls per gallon if you're brave. Add the dry koolbloom within the last 2 weeks before flysh
Review: Will buy again - Works great at bulking

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001IMJFKU |
| Best Sellers Rank | #312,954 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #955 in Nutrients & Additives |
| Brand | General Hydroponics |
| Brand Name | General Hydroponics |
| Coverage | Medium |
| Customer Reviews | 4.7 out of 5 stars 829 Reviews |
| Global Trade Identification Number | 00793094014533 |
| Item Form | Liquid |
| Item Weight | 0.75 Kilograms |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | rotary |
| Mixing Ratio | 0:10:10 |
| Model Number | HGC732538 |
| Part Number | HGC732538 |
| Specific Uses For Product | Plant Growth, Flowering |
| Target Species | plants |
| UPC | 793094014533 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** General Hydroponics
- **Item Form:** Liquid
- **Item Weight:** 0.75 Kilograms
- **Liquid Volume:** 128 Fluid Ounces
- **Specific Uses For Product:** Plant Growth, Flowering

## Images

![1 gal. - KoolBloom - Bloom Maximizer - Hydroponic Nutrient Solution - 0-10-10 NPK Ratio - General Hydroponics 732538 - Image 1](https://m.media-amazon.com/images/I/61a3gvKrdyL.jpg)
![1 gal. - KoolBloom - Bloom Maximizer - Hydroponic Nutrient Solution - 0-10-10 NPK Ratio - General Hydroponics 732538 - Image 2](https://m.media-amazon.com/images/I/41cBt8xcoKL.jpg)

## Questions & Answers

**Q: Can you use kool bloom with ocean fox farm soil**
A: Yes! You will only use KoolBloom in the flowering stages. It does not matter Soil , Coco , Hydroponics works with every medium!

**Q: Do you add this in with the normal mix of flora micro, grow, and bloom? Or is this to used by itself?**
A: I use the maxi series and (grow and bloom) and I do use it with base nutrients. 
This product is to be used to supplement WITH base nutrients .

**Q: Is this organic**
A: No

**Q: Is organic?**
A: It is not considered organic

## Customer Reviews

### ⭐⭐⭐⭐⭐ A great PK booster for bloom
*by J***H on 29 September 2020*

A great PK booster for bloom. Start with 5mls per gallon and graduaĺly increase up to 10mls per gallon. 15mls per gallon if you're brave. Add the dry koolbloom within the last 2 weeks before flysh

### ⭐⭐⭐⭐⭐ Will buy again
*by C***C on 28 May 2021*

Works great at bulking

### ⭐⭐⭐⭐⭐ OUTSTANDING
*by D***A on 14 December 2025*

Using it for years now with great results

## Frequently Bought Together

- General Hydroponics Liquid KoolBloom, Bulking Formula, 0-10-10, 1 gal.
- General Hydroponics CALiMAGic 1-0-0, Concentrated Blend Of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Gallon
- General Hydroponics Flora Grow, Bloom, Micro Combo Fertilizer, 1 gallon each, Pack of 3

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**Shop now:** [https://www.desertcart.at/products/100665896-1-gal-koolbloom-bloom-maximizer-hydroponic-nutrient-solution-0-10](https://www.desertcart.at/products/100665896-1-gal-koolbloom-bloom-maximizer-hydroponic-nutrient-solution-0-10)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-06-05*