Menu
Search
Search
  1. Home
  2. Fertilizers

Fertilizers

Custom Hydro stocks a full selection of water soluble and organic fertilizers and plant bio-stimulants.

Featured Products

MAGNIFIC 11-0-0 Magnesium Nitrate Fertilizer 55 lb.
(0)
MAGNIFIC 11-0-0 Magnesium Nitrate Fertilizer 55 lb.
$47.56
In Stock.
Add To Cart
Giles Magriculture Magnesium Sulfate 50 lb.
(0)
Giles Magriculture Magnesium Sulfate 50 lb.
$25.90
In Stock.
Add To Cart
Peters Professional S.T.E.M. 25 lb.
(0)
Peters Professional S.T.E.M. 25 lb.
$84.85
In Stock.
Add To Cart
AgSil 16H Potassium Silicate fertilizer 50 lb.
(0)
AgSil 16H Potassium Silicate fertilizer 50 lb.
$321.84
In Stock.
Add To Cart
Peters Professional 5-11-26 Hydroponic Special fertilizer 25 lb.
(0)
Peters Professional 5-11-26 Hydroponic Special fertilizer 25 lb.
$46.27
In Stock. Free Shipping.
Add To Cart
Iron Sulfate Heptahydrate powder 50 lb.
(0)
Iron Sulfate Heptahydrate powder 50 lb.
$32.81
In Stock.
Add To Cart
Manganese Sulfate Soluble Fertilizer Powder 55 lb.
(0)
Manganese Sulfate Soluble Fertilizer Powder 55 lb.
$63.00
In Stock.
Add To Cart
Maximo 360 Soluble Zinc Sulfate fertilizer 50 lb.
(0)
Maximo 360 Soluble Zinc Sulfate fertilizer 50 lb.
$79.99
In Stock. Free Shipping.
Add To Cart
Sil-MATRIX Potassium Silicate 2.5 gallon
(0)
Sil-MATRIX Potassium Silicate 2.5 gallon
$92.44
In Stock.
Add To Cart
Calcium Chloride fertilizer 50 lb.
(0)
Calcium Chloride fertilizer 50 lb.
$37.27
In Stock.
Add To Cart
Chelated Micronutrient Mix 1 lb.
(0)
Chelated Micronutrient Mix 1 lb.
$20.42
In Stock.
Add To Cart
Chelated Micronutrient Mix fertilizer 4.4 lb.
(0)
Chelated Micronutrient Mix fertilizer 4.4 lb.
$56.98
Out of stock
Add To Cart
Chelated Micronutrient Mix 22 lb.
(0)
Chelated Micronutrient Mix 22 lb.
$224.56
Out of stock
Add To Cart
Vitazyme plant bio-stimulant 1 gallon
(0)
Vitazyme plant bio-stimulant 1 gallon
$74.00
In Stock.
Add To Cart
Peat-Lite Special 20-10-20 fertilizer 25 lb.
(0)
Peat-Lite Special 20-10-20 fertilizer 25 lb.
$42.16
In Stock.
Add To Cart
Flowering Crop Special 15-5-25 fertilizer 25 lb.
(0)
Flowering Crop Special 15-5-25 fertilizer 25 lb.
$45.86
In Stock.
Add To Cart
Biomin Calcium Gallon
(0)
Biomin Calcium Gallon
$39.00
In Stock.
Add To Cart
Potassium Sulfate Organic PROTASSIUM+ STANDARD FINES 50LB
(0)
Potassium Sulfate Organic PROTASSIUM+ STANDARD FINES 50LB
$45.65
In Stock.
Add To Cart
APF SoluGreen Ammonium Sulfate (21-0-0) 50 LB
(0)
APF SoluGreen Ammonium Sulfate (21-0-0) 50 LB
$27.05
In Stock.
Add To Cart
ICL PeaK MKP 0-52-34 fertilizer 50 lb. bag
(0)
ICL PeaK MKP 0-52-34 fertilizer 50 lb. bag
$129.18
In Stock.
Add To Cart
Haifa MKP 0-52-34 Fertilizer 50 lb.
(0)
Haifa MKP 0-52-34 Fertilizer 50 lb.
$130.00
Out of stock
Add To Cart
Calcium Sulfate Solution Grade GYPSUM 50 lb.
(0)
Calcium Sulfate Solution Grade GYPSUM 50 lb.
$12.75
In Stock.
Add To Cart
Soluble Fulvic Acid 1 lb.
(0)
Soluble Fulvic Acid 1 lb.
$13.40
In Stock.
Add To Cart
Ferti-Organic Soluble Fulvic Acid 50 lb.
(0)
Ferti-Organic Soluble Fulvic Acid 50 lb.
$204.50
In Stock.
Add To Cart
Ferti-Organic Soluble Seaweed Extract 0-0-14 fertilizer 50 lb. bag
(0)
Ferti-Organic Soluble Seaweed Extract 0-0-14 fertilizer 50 lb. bag
$287.35
In Stock.
Add To Cart
Haifa Multi-K Reci potassium nitrate, 55 lb. bag
(0)
Haifa Multi-K Reci potassium nitrate, 55 lb. bag
$66.75
In Stock.
Add To Cart
Azomite 44 lb.
(0)
Azomite 44 lb.
$39.75
In Stock.
Add To Cart
Metalosate MultiMineral powder 5 lb.
(0)
Metalosate MultiMineral powder 5 lb.
$89.85
In Stock.
Add To Cart
Metalosate Copper 5 lb.
(0)
Metalosate Copper 5 lb.
$89.85
In Stock.
Add To Cart
Urea 46-0-0 with low biuret (0.5% max) 50 lb.
(0)
Urea 46-0-0 with low biuret (0.5% max) 50 lb.
$51.11
In Stock.
Add To Cart
Peters Excel 15-5-15 Cal Mag Special with Black Iron - 25 lb
(0)
Peters Excel 15-5-15 Cal Mag Special with Black Iron - 25 lb
$46.10
In Stock.
Add To Cart
Peters Peat Lite Special 10-30-20 Plant Starter - 25 lb
(0)
Peters Peat Lite Special 10-30-20 Plant Starter - 25 lb
$54.55
In Stock.
Add To Cart
MasterBlend 4-18-38 Tomato Formula 25 lb. bag
(0)
MasterBlend 4-18-38 Tomato Formula 25 lb. bag
$50.50
In Stock.
Add To Cart
Iron Sulfate monohydrate, 30% iron fertilizer
(0)
Iron Sulfate monohydrate, 30% iron fertilizer
$38.00
In Stock.
Add To Cart
Maximo 361 Mini-Granule Zinc Sulfate Fertilizer 50 lb.
(0)
Maximo 361 Mini-Granule Zinc Sulfate Fertilizer 50 lb.
$63.05
In Stock.
Add To Cart
Maximo 363 Maxi-Granule Zinc Sulfate Fertilizer 50 lb. BAG
(0)
Maximo 363 Maxi-Granule Zinc Sulfate Fertilizer 50 lb. BAG
$68.65
In Stock.
Add To Cart
Nutra-Sorb K-Prime 0-0-25 Potassium Acetate Fertilizer
(0)
Nutra-Sorb K-Prime 0-0-25 Potassium Acetate Fertilizer
$103.96
In Stock.
Add To Cart
Nature's Source Organic Plant Food 3-1-1 4.7 gallon
(0)
Nature's Source Organic Plant Food 3-1-1 4.7 gallon
$64.07
In Stock.
Add To Cart
Metalosate Calcium soluble powder 5 lb.
(0)
Metalosate Calcium soluble powder 5 lb.
$91.95
In Stock.
Add To Cart
Sulfur Wettable/Dust - 50 lb
(0)
Sulfur Wettable/Dust - 50 lb
$44.51
In Stock.
Add To Cart
Haifa GrowClean 5-31-40 polyphosphate fertilizer 55 lb.
(0)
Haifa GrowClean 5-31-40 polyphosphate fertilizer 55 lb.
$129.05
In Stock.
Add To Cart
Haifa SOP GG 0-0-51 55 lb.
(0)
Haifa SOP GG 0-0-51 55 lb.
$62.25
In Stock.
Add To Cart
Protassium+ 3 IX 0-0-53, 50 lb. bag
(0)
Protassium+ 3 IX 0-0-53, 50 lb. bag
$51.60
In Stock.
Add To Cart
V1 VEGETATIVE PART 1
(0)
V1 VEGETATIVE PART 1
In Stock.
Select Options
V2 VEGETATIVE PART 2
(0)
V2 VEGETATIVE PART 2
Out of stock
Select Options
B1 BLOOM PART 1
(0)
B1 BLOOM PART 1
In Stock.
Select Options
B2 BLOOM PART 2
(0)
B2 BLOOM PART 2
In Stock.
Select Options
PureCal 13-0-0 ammonium free calcium nitrate 55 lb. bag
(0)
PureCal 13-0-0 ammonium free calcium nitrate 55 lb. bag
$41.75
In Stock. Free Shipping.
Add To Cart
Plant-Prod MJ Bloom, 25 lb. bag
(0)
Plant-Prod MJ Bloom, 25 lb. bag
$78.94
Out of stock
Add To Cart
Plant-Prod MJ Cal Kick, 15-0-14 25 lb. bag
(0)
Plant-Prod MJ Cal Kick, 15-0-14 25 lb. bag
$57.10
In Stock.
Add To Cart
Plant-Prod MJ Grow 12-8-26 25 lb. bag
(0)
Plant-Prod MJ Grow 12-8-26 25 lb. bag
$58.90
In Stock.
Add To Cart
Plantex Solutions 17-5-17 Complete 25 lb. bag
(0)
Plantex Solutions 17-5-17 Complete 25 lb. bag
$52.51
In Stock.
Add To Cart
Masterblend 8-15-36 Lettuce Formula 25 lb. bag
(0)
Masterblend 8-15-36 Lettuce Formula 25 lb. bag
$50.19
In Stock.
Add To Cart
Metalosate Calcium Boron soluble powder 5 lb.
(0)
Metalosate Calcium Boron soluble powder 5 lb.
$89.85
In Stock.
Add To Cart
Roots Organics Super Phos Bat Guano 55 lb
(0)
Roots Organics Super Phos Bat Guano 55 lb
$119.99
In Stock.
Add To Cart
Nitrogen Bat Guano 44 Lb 9
(0)
Nitrogen Bat Guano 44 Lb 9
$122.99
In Stock.
Add To Cart
Phos Sea Bird Guano Powder 40 lbs
(0)
Phos Sea Bird Guano Powder 40 lbs
$74.99
In Stock.
Add To Cart
Hygrozyme, 4 lt
(0)
Hygrozyme, 4 lt
$139.99
In Stock.
Add To Cart
Hygrozyme 5X Concentrate USA 20L
(0)
Hygrozyme 5X Concentrate USA 20L
$1,468.10
*Special Order Item
Add To Cart
HYSHIELD 1L
(0)
HYSHIELD 1L
$19.19
In Stock.
Add To Cart
HYSHIELD 4L
(0)
HYSHIELD 4L
$36.99
In Stock.
Add To Cart
MasterBlend 9-12-34 Strawberry Formula 25 lb. bag
(0)
MasterBlend 9-12-34 Strawberry Formula 25 lb. bag
$42.23
In Stock.
Add To Cart
Haifa DKP 0-41-54 fertilizer 50 lb.
(0)
Haifa DKP 0-41-54 fertilizer 50 lb.
$109.26
In Stock.
Add To Cart
Rexolin (Dissolvine) E-Mg-6 magnesium edta fertilizer 55 lb.
(0)
Rexolin (Dissolvine) E-Mg-6 magnesium edta fertilizer 55 lb.
$399.26
temporary back order
Add To Cart
AgSil 21 aqueous potassium silicate fertilizer 55 gallon
(0)
AgSil 21 aqueous potassium silicate fertilizer 55 gallon
$1,909.51
Back Order.
Add To Cart

Products [29]

Sort by:
1 2 3 Next Page View All
Soluble Trace Element Mix 1 lb.
(0)
Soluble Trace Element Mix 1 lb.
$10.47
In Stock.
Add To Cart
Soluble Trace Element Mix 4 lb.
(0)
Soluble Trace Element Mix 4 lb.
$20.88
In Stock.
Add To Cart
Soluble Trace Element Mix 8 oz
(0)
Soluble Trace Element Mix 8 oz
$5.70
In Stock.
Add To Cart
Potassium Chloride 0-0-62 fertilizer 50 lb.
(0)
Potassium Chloride 0-0-62 fertilizer 50 lb.
$43.68
In Stock.
Add To Cart
Iron Sulfate Hi Yield Copperas 4 lb.
(0)
Iron Sulfate Hi Yield Copperas 4 lb.
$5.80
In Stock.
Add To Cart
Iron Sulfate Heptahydrate 8 oz jar
(0)
Iron Sulfate Heptahydrate 8 oz jar
$4.45
In Stock.
Add To Cart
Iron Sulfate Heptahydrate 1 lb.
(0)
Iron Sulfate Heptahydrate 1 lb.
$4.75
In Stock.
Add To Cart
Iron Sulfate Heptahydrate 4 lb. jar
(0)
Iron Sulfate Heptahydrate 4 lb. jar
$7.90
In Stock.
Add To Cart
Calcium Chloride fertilizer 1 lb.
(0)
Calcium Chloride fertilizer 1 lb.
$7.04
In Stock.
Add To Cart
Calcium Chloride fertilizer 4 lb.
(0)
Calcium Chloride fertilizer 4 lb.
$14.00
In Stock.
Add To Cart
Calcium Chloride fertilizer 20 lb.
(0)
Calcium Chloride fertilizer 20 lb.
$24.64
In Stock.
Add To Cart
Soluble Fulvic Acid 4 lb.
(0)
Soluble Fulvic Acid 4 lb.
$31.15
In Stock.
Add To Cart
1 2 3 Next Page View All

Copyright Custom Hydro. All Rights Reserved. Powered by MINERAL Salts.

TOP