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White 2.5-gallon jug of Roots Organics HPK liquid guano, a blooming fertilizer for soil and hydroponic gardens.

Happy Hydro

4.5 (123)

Roots Organics HPK Liquid Guano 0-4-3

Name: Happy Hydro Roots Organics HPK Liquid Guano 0-4-3 - Roots Organics HPK Liquid Guano 0-4-3
Brand: Happy Hydro
SKU: 40511549014083
Price: 129.95 USD
Availability: InStock
Rating: 5 (2 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$129.95

Quantity

Color

Black

Quantity

Description

Roots Organics HPK liquid bloom booster features a combination of seabird guano, an unparalleled source of available natural phosphorus, phosphate rock, and langbeinite, a natural source of potassium that is carefully mined from ancient sea...

Reviews

5.0

2 ratings

Seems to be working great

Ryan · January 8, 2026

Plants seems to enjoy this in my organic regimen. I rotate this weekly with a PK booster for variety. Mixes easily; will leave a fine particulate in bottom of container/reservoir.

James · September 26, 2025

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Happy Hydro

4.8 (5.6K)

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Description

Reviews

5.0

2 ratings

Seems to be working great

Ryan · January 8, 2026

Plants seems to enjoy this in my organic regimen. I rotate this weekly with a PK booster for variety. Mixes easily; will leave a fine particulate in bottom of container/reservoir.

James · September 26, 2025