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Collection: Additives & Supplements

Nutrients that are great supplements to a base nutrient but do not contain complete plant nutrition.

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Foxfarm (14 products)
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167 products

Optic Foliar WATTS 500ml./17oz.

Sale

Optic Foliar WATTS 500ml./17oz.

Vendor:
Optic Foliar

Regular price $29.95

Regular price ~~$33.95~~ Sale price $29.95

Sale
Optic Foliar TRANSPORT 500ml./17oz.

Sale

Optic Foliar TRANSPORT 500ml./17oz.

Vendor:
Optic Foliar

Regular price $55.98

Regular price ~~$62.95~~ Sale price $55.98

Sale
Optic Foliar TRANSPORT 60ml./2oz.

Sale

Optic Foliar TRANSPORT 60ml./2oz.

Vendor:
Optic Foliar

Regular price $9.99

Regular price ~~$12.99~~ Sale price $9.99

Sale
Optic Foliar SWITCH 24L/6gal.

Sale

Optic Foliar SWITCH 24L/6gal.

Vendor:
Optic Foliar

Regular price $250.00

Regular price ~~$399.95~~ Sale price $250.00

Sale
Optic Foliar SWITCH 4L/1.05gal.

Sale

Optic Foliar SWITCH 4L/1.05gal.

Vendor:
Optic Foliar

Regular price $78.29

Regular price ~~$99.95~~ Sale price $78.29

Sale
Optic Foliar SWITCH 1L/34oz.

Sale

Optic Foliar SWITCH 1L/34oz.

Vendor:
Optic Foliar

Regular price $27.95

Regular price ~~$29.95~~ Sale price $27.95

Sale
Optic Foliar REV 250ml./8.5oz.

Sale

Optic Foliar REV 250ml./8.5oz.

Vendor:
Optic Foliar

Regular price $19.99

Regular price ~~$21.95~~ Sale price $19.99

Sale
Optic Foliar OVERGROW 4L/1.05gal. RTU

Sale

Optic Foliar OVERGROW 4L/1.05gal. RTU

Vendor:
Optic Foliar

Regular price $63.89

Regular price ~~$77.95~~ Sale price $63.89

Sale
Optic Foliar ATAK RTU 1L/34oz.

Sale

Optic Foliar ATAK RTU 1L/34oz.

Vendor:
Optic Foliar

Regular price $29.99

Regular price ~~$46.95~~ Sale price $29.99

Sale
RAW Enzymes 8 oz

Sale

RAW Enzymes 8 oz

Vendor:
NPK Industries

Regular price $74.24

Regular price ~~$74.99~~ Sale price $74.24

Sale
Raw Amino Acids 2 oz

Sale

Raw Amino Acids 2 oz

Vendor:
NPK Industries

Regular price $19.79

Regular price ~~$19.99~~ Sale price $19.79

Sale
RAW B-Vitamin 8 oz

RAW B-Vitamin 8 oz

Vendor:
NPK Industries

Regular price $44.85

Regular price ~~$44.85~~ Sale price $44.85
Mills Ultimate PK 5L

Sale

Mills Ultimate PK 5L

Vendor:
Mills Nutrients

Regular price $270.00

Regular price ~~$300.00~~ Sale price $270.00

Sale
Mills Start-R 5L

Sale

Mills Start-R 5L

Vendor:
Mills Nutrients

Regular price $216.00

Regular price ~~$240.00~~ Sale price $216.00

Sale
House & Garden Drip Clean 1 Liter

Sale

House & Garden Drip Clean 1 Liter

Vendor:
House & Garden

Regular price $62.37

Regular price ~~$63.00~~ Sale price $62.37

Sale
House & Garden Drip Clean 500 mL

Sale

House & Garden Drip Clean 500 mL

Vendor:
House & Garden

Regular price $40.29

Regular price ~~$40.70~~ Sale price $40.29

Sale
House & Garden Drip Clean 250 ml

Sale

House & Garden Drip Clean 250 ml

Vendor:
House & Garden

Regular price $25.44

Regular price ~~$25.70~~ Sale price $25.44

Sale
House & Garden Amino Treatment 1 Liter

Sale

House & Garden Amino Treatment 1 Liter

Vendor:
House & Garden

Regular price $197.51

Regular price ~~$199.50~~ Sale price $197.51

Sale
House & Garden Amino Treatment 500ML

Sold out

House & Garden Amino Treatment 500ML

Vendor:
House & Garden

Regular price $120.87

Regular price ~~$122.09~~ Sale price $120.87

Sold out
House & Garden Amino Treatment 250 ml

Sale

House & Garden Amino Treatment 250 ml

Vendor:
House & Garden

Regular price $76.34

Regular price ~~$77.11~~ Sale price $76.34

Sale

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CO2 Swaps - $12.49 + Tax

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