Celebrate our Roots with 4.20 Saving at Indoor Farmer!

Save on our best selling Nutrient Brands and other select products!

Savings listed online with no coupon code needed. Two Days Only! Offer valid only on April 20 & 21, 2026

Brands on Sale

Advanced Nutrients | Indoor Farmer
General Hydroponics | Indoor Farmer
ATHENA Nutrients | Indoor Farmer
Green Planet Nutrients | Indoor Farmer
Bluelab | Indoor Farmer
AC Infinity | Indoor Farmer
Canna | Indoor Farmer
Chikamasa | Indoor Farmer
Grove Bags | Indoor Farmer

Additional 15% Off Advanced Nutrients

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Save $6.54
Advanced Nutrients Bud Candy 1 L - Indoor FarmerAdvanced Nutrients Bud Candy 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Bud Candy
From $8.45 $14.99
In stock
Save $8.49
Advanced Nutrients pH Down 1 L - Indoor FarmerAdvanced Nutrients pH Down 500 ML - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Down
From $19.50 $27.99
In stock
Save $6.30
Advanced Nutrients pH Perfect 3Part Nutrient Bundle 1 L - Indoor FarmerAdvanced Nutrients pH Perfect 3Part Nutrient Bundle 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect 3Part Nutrient Bundle
From $35.65 $41.95
In stock
Save $12.09
Advanced Nutrients B - 52 1 L - Indoor FarmerAdvanced Nutrients B - 52 500 ml - Indoor Farmer
Advanced Nutrients Advanced Nutrients B-52
From $22.90 $34.99
In stock
Save $5.89
Advanced Nutrients Sensi Cal Mag Xtra 1 L - Indoor FarmerAdvanced Nutrients Sensi Cal Mag Xtra 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Sensi Cal Mag Xtra
From $16.10 $21.99
In stock
Save $8.64
Advanced Nutrients Big Bud Liquid 1 L - Indoor FarmerAdvanced Nutrients Big Bud Liquid 4L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Big Bud Liquid
From $20.35 $28.99
In stock
Save $9.89
Advanced Nutrients Rhino Skin 1 L - Indoor FarmerAdvanced Nutrients Rhino Skin 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Rhino Skin
From $16.10 $25.99
In stock
Save $8.49
Advanced Nutrients pH Up 1 L - Indoor FarmerAdvanced Nutrients pH Up 500 ML - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Up
From $19.50 $27.99
In stock
Save $9.34
Advanced Nutrients Overdrive 1 L - Indoor FarmerAdvanced Nutrients Overdrive 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Overdrive
From $18.65 $27.99
In stock
Save $10.59
Advanced Nutrients Sensizym 1L - Indoor FarmerAdvanced Nutrients Sensizym 4L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Sensizym
From $31.40 $41.99
In stock
Save $8.79
Advanced Nutrients Voodoo Juice 1 L - Indoor FarmerAdvanced Nutrients Voodoo Juice 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Voodoo Juice
From $21.20 $29.99
In stock
Save $11.55
Advanced Nutrients Bud Factor X 1 L - Indoor FarmerAdvanced Nutrients Bud Factor X 500 ML - Indoor Farmer
Advanced Nutrients Advanced Nutrients Bud Factor X
From $48.40 $59.95
In stock
Save $4.59
Advanced Nutrients pH Perfect Sensi Bloom PART A 1 L - Indoor FarmerAdvanced Nutrients pH Perfect Sensi Bloom PART A 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect Sensi Bloom PART A
From $14.40 $18.99
In stock
Save $4.59
Advanced Nutrients pH Perfect Sensi Bloom PART B 1 L - Indoor FarmerAdvanced Nutrients pH Perfect Sensi Bloom PART B 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect Sensi Bloom PART B
From $14.40 $18.99
In stock
Save $5.19
Advanced Nutrients Flawless Finish 1 L - Indoor FarmerAdvanced Nutrients Flawless Finish 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Flawless Finish
From $17.80 $22.99
In stock
Save $9.50
Advanced Nutrients Bud Ignitor 1 L - Indoor FarmerAdvanced Nutrients Bud Ignitor 500 ml - Indoor Farmer
Advanced Nutrients Advanced Nutrients Bud Ignitor
From $25.45 $34.95
In stock
Save $8.24
Advanced Nutrients pH Perfect 3Part Bloom 1 L - Indoor FarmerAdvanced Nutrients pH Perfect 3Part Bloom 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect 3Part Bloom
From $6.75 $14.99
In stock
Save $1.20
Advanced Nutrients pH Perfect 3Part Grow 1 L - Indoor FarmerAdvanced Nutrients pH Perfect 3Part Grow 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect 3Part Grow
From $6.75 $7.95
In stock
Save $8.79
Advanced Nutrients Tarantula 1 L - Indoor FarmerAdvanced Nutrients Tarantula 250 ml - Indoor Farmer
Advanced Nutrients Advanced Nutrients Tarantula
From $21.20 $29.99
In stock
Save $11.54
Advanced Nutrients pH Perfect 3Part Micro 1 L - Indoor FarmerAdvanced Nutrients pH Perfect 3Part Micro 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect 3Part Micro
From $8.45 $19.99
In stock
Save $8.79
Advanced Nutrients Piranha 1 L - Indoor FarmerAdvanced Nutrients Piranha 1 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients Piranha
From $21.20 $29.99
In stock
Save $4.59
Advanced Nutrients pH Perfect Sensi Grow PART A 1 L - Indoor FarmerAdvanced Nutrients pH Perfect Sensi Grow PART A 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect Sensi Grow PART A
From $14.40 $18.99
In stock
Save $4.59
Advanced Nutrients pH Perfect Sensi Grow PART B 1 L - Indoor FarmerAdvanced Nutrients pH Perfect Sensi Grow PART B 4 L - Indoor Farmer
Advanced Nutrients Advanced Nutrients pH Perfect Sensi Grow PART B
From $14.40 $18.99
In stock
Save $8.79
Advanced Nutrients CarboLoad Liquid 1 L - Indoor FarmerAdvanced Nutrients CarboLoad Liquid 4L - Indoor Farmer
Advanced Nutrients Advanced Nutrients CarboLoad Liquid
From $21.20 $29.99
In stock

Precision meets Passion: Save on Bluelab essentials

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Save $2.70
Bluelab 2.77 EC Conductivity Solution 500 ml - Indoor Farmer
Bluelab Bluelab 2.77 EC Conductivity Solution
$24.25 $26.95
In stock
Save $3.00
Bluelab 4.0 pH Calibration Solution 500 ml - Indoor Farmer
Bluelab Bluelab 4.0 pH Calibration Solution
$26.95 $29.95
In stock
Save $3.00
Bluelab 7.0 pH Calibration Solution 500 ml - Indoor Farmer
Bluelab Bluelab 7.0 pH Calibration Solution
$26.95 $29.95
In stock
S/O Bluelab Combo Meter pH, EC, Temp - Indoor Farmer
Bluelab Bluelab Combo Meter pH, EC, Temp
$399.95
Sold out
Save $45.00
Bluelab Combo Meter PLUS pH, EC, Temp - Indoor Farmer
Bluelab Bluelab Combo Meter with Leap pH Probe - pH, EC, Temp
$404.95 $449.95
In stock
Save $13.00
Bluelab Conductivity Pen (EC or PPM) - Indoor Farmer
Bluelab Bluelab Conductivity Pen (EC or PPM)
$116.95 $129.95
In stock
Save $55.00
Bluelab Guardian Monitor Wi - Fi - Indoor Farmer
Bluelab Bluelab Guardian Monitor Wi-Fi
$494.95 $549.95
In stock
Save $34.00
Bluelab OnePen (pH, EC and Temperature) - Indoor FarmerBluelab OnePen (pH, EC and Temperature) - Indoor Farmer
Bluelab Bluelab OnePen (pH, EC and Temperature)
$305.95 $339.95
In stock
Save $4.50
Bluelab pH & Conductivity Probe Care Kit - Indoor Farmer
Bluelab Bluelab pH & Conductivity Probe Care Kit
$40.45 $44.95
In stock
Save $120.00
Bluelab pH Controller Wi - Fi - Indoor Farmer
Bluelab Bluelab pH Controller Wi-Fi
$719.95 $839.95
In stock
Save $16.50
Bluelab pH Pen - Indoor FarmerBluelab pH Pen - Indoor Farmer
Bluelab Bluelab pH Pen
$148.45 $164.95
In stock
Save $3.50
Bluelab pH Probe KCI Storage Solution 250 ml - Indoor Farmer
Bluelab Bluelab pH Probe KCI Storage Solution
$31.45 $34.95
In stock
Save $19.00
Bluelab Replacement Leap pH Probe - Indoor Farmer
Bluelab Bluelab Replacement Leap pH Probe
$170.95 $189.95
In stock
Save $12.50
Bluelab Replacement pH Probe - Indoor Farmer
Bluelab Bluelab Replacement pH Probe
$112.45 $124.95
In stock
Bluelab Soil pH Pen - Indoor Farmer
Bluelab Bluelab Soil pH Pen
$259.95
In stock
Save $18.00
Bluelab Truncheon Nutrient Meter (EC/TDS) - Indoor Farmer
Bluelab Bluelab Truncheon EC+TDS Nutrient Meter
$161.95 $179.95
In stock

20% Off Grove Bags: Professional curing made easy

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Grove Bags TERPLOC Bag with Window 1/4 OZ - Indoor Farmer
Grove Bags Grove Bags TERPLOC Bag with Window 1/4 OZ
$0.95
Sold out
Save $0.80
Grove Bags TERPLOC Bag with Window 1/2 OZ - Indoor Farmer
Grove Bags Grove Bags TERPLOC Bag with Window 1/2 OZ
$1.00 $1.80
Sold out
Save $0.45
Grove Bags TERPLOC Bag with Window 1 OZ - Indoor Farmer
Grove Bags Grove Bags TERPLOC Bag with Window 1 OZ
$1.80 $2.25
In stock
Grove Bags Terploc Wicket Storage Bag 5 GAL - Indoor Farmer
Grove Bags Grove Bags Terploc Wicket Storage Bag 5 GAL
$2.50
Sold out
Save $0.90
Grove Bags TERPLOC Bag with Window 1/4 LB - Indoor Farmer
Grove Bags Grove Bags TERPLOC Bag with Window 1/4 LB
$3.60 $4.50
In stock
Save $1.20
Grove Bags TERPLOC Bag with Window 1/2 LB - Indoor Farmer
Grove Bags Grove Bags TERPLOC Bag with Window 1/2 LB
$4.80 $6.00
In stock
Save $2.40
Grove Bags TERPLOC Bag with Window 1 LB - Indoor Farmer
Grove Bags Grove Bags TERPLOC Bag with Window 1 LB
$9.60 $12.00
In stock

Save on General Hydroponics: The OG Liquid Nutrient

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Save $3.00
General Hydroponics CALiMAGic 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics CALiMAGic 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics CALiMAGic
From $26.95 $29.95
In stock
Save $3.10
General Hydroponics Diamond Nectar 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics Diamond Nectar 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics Diamond Nectar
From $27.85 $30.95
In stock
Save $5.00
General Hydroponics Dry KoolBloom 2.2 LBS - Indoor Farmer
General Hydroponics General Hydroponics Dry KoolBloom
$44.95 $49.95
In stock
Save $10.00
General Hydroponics Flora Series Nutrient Bundle 1 L - Indoor FarmerGeneral Hydroponics Flora Series Nutrient Bundle 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics Flora Series Nutrient Bundle
From $54.85 $64.85
In stock
Save $23.40
General Hydroponics Flora Series Performance Bundle 1 L - Indoor FarmerGeneral Hydroponics Flora Series Performance Bundle 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics Flora Series Performance Bundle
From $139.45 $162.85
In stock
Save $1.90
General Hydroponics FloraBlend 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics FloraBlend 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics FloraBlend
From $17.05 $18.95
In stock
Save $2.00
General Hydroponics FloraBloom 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics FloraBloom 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics FloraBloom
From $17.95 $19.95
In stock
Save $2.00
General Hydroponics FloraGro 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics FloraGro 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics FloraGro
From $17.95 $19.95
In stock
Save $1.70
General Hydroponics FloraKleen 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics FloraKleen 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics FloraKleen
From $15.25 $16.95
In stock
Save $5.60
General Hydroponics Floralicious Plus 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics Floralicious Plus 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics Floralicious Plus
From $50.35 $55.95
In stock
Save $2.50
General Hydroponics FloraMicro 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics FloraMicro 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics FloraMicro
From $22.45 $24.95
In stock
Save $3.70
General Hydroponics FloraNectar FruitnFusion 1 QT / 946 ML - Indoor FarmerGeneral Hydroponics FloraNectar FruitnFusion 1 GAL / 3.8 L - Indoor Farmer
General Hydroponics General Hydroponics FloraNectar FruitnFusion
From $33.25 $36.95
In stock

Savings already applied — no coupon needed!