---
product_id: 38940154
title: "Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon"
brand: "humboldts secret"
price: "S$262"
currency: SGD
in_stock: true
reviews_count: 8
category: "Humboldts Secret"
url: https://www.desertcart.sg/products/38940154-humboldts-secret-base-a-and-b-liquid-hydroponic-fertilizer-complete
store_origin: SG
region: Singapore
---

# Complete NPK + Ca & Mg nutrition 2-part liquid formula for easy mixing pH-balanced, clog-free for all systems Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon

**Brand:** humboldts secret
**Price:** S$262
**Availability:** ✅ In Stock

## Summary

> 🌱 Unlock your garden’s secret weapon for unstoppable growth!

## Quick Answers

- **What is this?** Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon by humboldts secret
- **How much does it cost?** S$262 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/38940154-humboldts-secret-base-a-and-b-liquid-hydroponic-fertilizer-complete)

## Best For

- humboldts secret enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Perfect for hydroponics, soil, coco coir, pots, and raised beds—grow anywhere, anytime.
- • **Pro-Level Growth Results:** Trusted by home growers and commercial cultivators for rapid, visible plant health improvements.
- • **Clean & Efficient Formula:** Water-soluble and pH-balanced to prevent clogs and residue in automated or hand watering setups.
- • **Effortless Weekly Feeding:** Mix equal parts Base A & B for consistent, no-guesswork nutrition every watering.
- • **All-in-One Nutrient Powerhouse:** Full spectrum formula fuels vibrant leaves and bold blooms across all plant types.

## Overview

Humboldts Secret Base A & B is a premium 2-part liquid hydroponic fertilizer delivering a balanced blend of nitrogen, phosphorus, potassium, calcium, and magnesium. Designed for indoor and outdoor plants, it supports every growth stage with a simple, fast-mixing formula compatible with all growing mediums and watering systems. Trusted by thousands, it ensures vibrant, healthy plants with professional-grade results.

## Description

desertcart.com : Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon : Patio, Lawn & Garden

Review: Excellent buy..... - Excellent product. Used now for a little over 3 weeks, Shipper made mistake that I did not catch, but spouse did. They sent 2 bottles of "A" instead of one each. Honestly was impressed with just the "A" part. Been using the mix of "AB" for about 2 weeks and "*%&=/&". Plants using about 1 gallons every other day. Mixed as recommended, will last a long time at the rate of use. 6 teaspoons per oz. 32 oz per bottle (192) feedings..... I recommend this product. HUMBOLTS! NICE. Thanks
Review: Came in great shape works as labeled - I’ve been using these for my “tomato’s” and honestly works great makes your plant grow like crazy if it’s your first time maybe try there stater kit

## Features

- Fuel Plants With Complete Nutrition: Humboldts Secret Base A and B delivers a full-spectrum formula with nitrogen, phosphorus, potassium, calcium, and magnesium. These premium plant nutrients support steady development, vibrant leaves, and bold blooms for vegetables, herbs, flowers, and indoor plants. Our formula is ideal for those who want lasting plant health and consistent feeding every single week.
- Simplify Your Feeding Routine: Our easy two-part system requires no complex schedules or guesswork. Just mix equal parts of Base A and B with every watering. This consistent approach supports better absorption and stronger plants across hydroponic gardening, coco coir, or traditional soil setups. Measuring and mixing take just seconds each time.
- Compatible With Any Grow Setup: Humboldts Secret nutrients are built for results in deep water culture, aquaponics, pots, raised beds, or coco. Our Base A and B are trusted as reliable hydroponic nutrients by both home growers and commercial cultivators. Works great with timers, tanks, or hand watering systems.
- Professional Results Without the Hassle: Our pH-balanced, fully water-soluble formula mixes fast and clean. It won’t clog lines or leave residue, making it ideal for hand-watering or automated systems. Humboldts Secret delivers dependable liquid plant food for every stage of plant development. Start seeing results in just a week.
- Support Every Plant With One Formula: From leafy greens and flowering plants to trees, herbs, and houseplants, our Base A and B system delivers the core nutrients all plants need. Use this proven fertilizer for indoor plants across your entire garden for consistent, visible results. Safe for hydroponics, soil, containers, or beds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #5,911 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #215 in Garden Fertilizers |
| Brand | Humboldts Secret |
| Customer Reviews | 4.5 out of 5 stars 3,351 Reviews |
| Global Trade Identification Number | 00648260730444 |
| Item Form | Liquid |
| Item Weight | 128 Ounces |
| Liquid Volume | 256 Fluid Ounces |
| Specific Uses For Product | Hydroponics |

## Product Details

- **Brand:** Humboldts Secret
- **Item Weight:** 128 Ounces
- **Item Form:** Liquid
- **Liquid Volume:** 256 Fluid Ounces
- **Specific Uses For Product:** Hydroponics

## Images

![Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon - Image 1](https://m.media-amazon.com/images/I/61NCrzw6jsL.jpg)
![Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon - Image 2](https://m.media-amazon.com/images/I/81ih6tAw2-L.jpg)
![Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon - Image 3](https://m.media-amazon.com/images/I/81tdAUlLsBL.jpg)
![Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon - Image 4](https://m.media-amazon.com/images/I/81txDYbQq5L.jpg)
![Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 1 Gallon - Image 5](https://m.media-amazon.com/images/I/81uexqanZzL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent buy.....
*by M***. on September 21, 2025*

Excellent product. Used now for a little over 3 weeks, Shipper made mistake that I did not catch, but spouse did. They sent 2 bottles of "A" instead of one each. Honestly was impressed with just the "A" part. Been using the mix of "AB" for about 2 weeks and "*%&<÷>=/&". Plants using about 1 gallons every other day. Mixed as recommended, will last a long time at the rate of use. 6 teaspoons per oz. 32 oz per bottle (192) feedings..... I recommend this product. HUMBOLTS! NICE. Thanks

### ⭐⭐⭐⭐⭐ Came in great shape works as labeled
*by J***H on December 23, 2025*

I’ve been using these for my “tomato’s” and honestly works great makes your plant grow like crazy if it’s your first time maybe try there stater kit

### ⭐⭐⭐⭐⭐ Works well
*by A***R on January 8, 2026*

Great for my hydroponic Lettuce

## Frequently Bought Together

- Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants
- Humboldts Secret Golden Tree: Best Plant Food for Plants & Trees - All-in-One Concentrated Additive - Vegetables, Flowers, Fruits, Lawns, Roses, Tomatoes & More (16 Ounce)
- Humboldts Secret Plant Enzymes – Best Plant and Root Enzymes – 7000 Active Units of Enzyme per Milliliter – Quality Plant Food and Plant Fertilizer – Highly Concentrated – 8 Ounce

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*