Hydroponic Shop

Curated Hydroponic Products

Not sponsored. Not gifted. Hand-picked based on real grower reviews — pH meters, grow lights, systems, the 7 raw nutrient salts, and everything in between.

Affiliate disclosure: As an Amazon Associate, Megaponics earns a small commission from qualifying purchases at no extra cost to you. This helps keep the calculator and guides free forever.
Shop for:

Showing 57 of 57 products

General Hydroponics pH Control KitBest Seller

General Hydroponics

General Hydroponics pH Control Kit

The #1 pH kit on Amazon with 30,000+ reviews. Includes pH Up, pH Down, liquid test indicator, test tube, and chart.

4.7 · 30,631 reviews
VIVOSUN pH + TDS/EC/Temp Combo KitBudget Pick

VIVOSUN

VIVOSUN pH + TDS/EC/Temp Combo Kit

Two-meter bundle: pH pen + TDS/EC/Temp pen. The most-reviewed hydroponic meter combo on Amazon. UL certified.

4.1 · 24,557 reviews
Amazon Basics Epsom Salt 3 lb (Unscented)Budget Pick

Amazon Basics

Amazon Basics Epsom Salt 3 lb (Unscented)

USP grade unscented Epsom salt, 3 lb bag, $3.35 — you can't beat this for cost. Works perfectly as MgSO4 in any nutrient formula.

4.8 · 17,050 reviews
LORDEM Full Spectrum Desk Grow Light

LORDEM

LORDEM Full Spectrum Desk Grow Light

Height-adjustable desk grow lamp — the most popular indoor grow light on Amazon. Auto timer, 4 dimming levels. Fits any countertop system.

4.3 · 15,917 reviews
MARPHYL Organic Trace Mineral Blend 24oz

MARPHYL

MARPHYL Organic Trace Mineral Blend 24oz

Organic liquid trace mineral blend — 13,000+ reviews. Improves micronutrient uptake and adds trace elements not in typical formulas.

4.4 · 13,126 reviews
GH Rapid Rooter Plugs 50 CountBest Seller

General Hydroponics

GH Rapid Rooter Plugs 50 Count

Made from composted bark — 12,700+ reviews. The most trusted propagation plug for seedlings and cuttings in hydroponics.

4.5 · 12,778 reviews
Spider Farmer SF1000 100W Full SpectrumBest Seller

Spider Farmer

Spider Farmer SF1000 100W Full Spectrum

Best-selling grow tent light — covers 2×2 or 3×3 ft, Samsung LM301B diodes, dimmable. The benchmark for entry-level grow tents.

4.6 · 12,373 reviews
Flower Fuel P+K Bloom Booster 250g (MKP-based)Best Seller

Element Nutrients

Flower Fuel P+K Bloom Booster 250g (MKP-based)

10,000+ reviews. Phosphorus and potassium concentrate (1-34-32) used by hobbyists as a bloom-stage MKP substitute. Easy to dose.

4.6 · 10,284 reviews
TOYPOPOR Clay Pebbles 2.2lb Hydroton

TOYPOPOR

TOYPOPOR Clay Pebbles 2.2lb Hydroton

Most popular clay pebbles on Amazon — 9,600+ reviews. Lightweight, reusable, pH neutral. Perfect for DWC, NFT, and pots.

4.6 · 9,609 reviews
plantonix Coco Coir Bricks 5-Pack OMRI

plantonix

plantonix Coco Coir Bricks 5-Pack OMRI

OMRI-listed organic coco coir — 5 bricks expand to fill large planters. pH balanced, low EC, top choice for coco grows.

4.7 · 7,207 reviews
Earthborn Elements Epsom Salt 1 Gallon Bucket

Earthborn Elements

Earthborn Elements Epsom Salt 1 Gallon Bucket

1-gallon resealable bucket — best bulk option for active growers. All-natural MgSO4, no additives.

4.6 · 6,505 reviews
Pure Original Ingredients Epsom Salt Food Grade 1 lb

PURE ORIGINAL INGREDIENTS

Pure Original Ingredients Epsom Salt Food Grade 1 lb

1 lb food-grade MgSO4 — single ingredient, no additives. 6,000+ reviews. Reliable and dissolves completely in water.

4.7 · 6,281 reviews
Juhefa Gooseneck Grow Light 6000KBudget Pick

Juhefa

Juhefa Gooseneck Grow Light 6000K

Flexible gooseneck clip-on at 6000K full spectrum. Auto timer, 5 dimming levels. Perfect for seedlings and small setups.

4.5 · 5,952 reviews
Bluelab pH Pen (Professional)Pro Pick

Bluelab

Bluelab pH Pen (Professional)

Industry standard in commercial hydroponics. Waterproof, floats, ±0.1 pH accuracy, auto temperature compensation. Made in NZ.

4.4 · 4,761 reviews
AQUANEAT 80 GPH Submersible PumpBudget Pick

AQUANEAT

AQUANEAT 80 GPH Submersible Pump

80 GPH submersible water pump at under $6 — 4,500+ reviews. Runs drip and recirculating systems in small to mid reservoirs.

4.2 · 4,550 reviews
Legigo 7LB Organic LECA PebblesTop Rated

Legigo

Legigo 7LB Organic LECA Pebbles

100% natural organic LECA — 4.7 stars across 4,000+ reviews. Mixed 4–16mm for good drainage and root aeration.

4.7 · 4,266 reviews
SANSI Clip Grow Lights 2-Pack 5V

SANSI

SANSI Clip Grow Lights 2-Pack 5V

USB-powered 5V clip lights — safe, low heat, auto timer. Great for multi-pod countertop gardens where lights per pod matter.

4.5 · 4,137 reviews
GH FloraMicro 5-0-1 16oz (Micronutrients)Best Seller

General Hydroponics

GH FloraMicro 5-0-1 16oz (Micronutrients)

The industry-standard micro source — Fe, Mn, Zn, B, Mo, Co, all chelated for bioavailability. 16oz liquid, 3,600+ reviews.

4.7 · 3,655 reviews
Apera PH60 Pocket pH Tester KitTop Rated

Apera Instruments

Apera PH60 Pocket pH Tester Kit

±0.01 pH accuracy with a replaceable probe — extends lifespan and keeps readings consistent. Pro-grade reliability.

4.5 · 3,487 reviews
Ahopegarden 10-Pod Indoor GardenBest Seller

Ahopegarden

Ahopegarden 10-Pod Indoor Garden

Most popular countertop hydroponic garden — 10 pods, full spectrum LED, quiet pump, height adjustable. 3,000+ reviews.

4.6 · 3,186 reviews
GuDoQi 4-in-1 pH EC TDS Temp Combo

GuDoQi

GuDoQi 4-in-1 pH EC TDS Temp Combo

All four readings in one pen — pH, EC, TDS, and temperature. Great for quick daily reservoir checks.

4.1 · 2,945 reviews
VIVOSUN 5×5" Air Stone Disc

VIVOSUN

VIVOSUN 5×5" Air Stone Disc

Large disc air stone for maximum oxygen diffusion — 2,700+ reviews. Fits most 5-gallon DWC buckets perfectly.

4.3 · 2,784 reviews
Simple Deluxe Multi-Outlet Air PumpBest Seller

Simple Deluxe

Simple Deluxe Multi-Outlet Air Pump

Multi-outlet air pump with adjustable flow per port. Power multiple DWC buckets from one unit — popular for multi-plant setups.

4.3 · 2,408 reviews
PowerGrow Calcium Nitrate 5 lbBest Seller

PowerGrow Systems

PowerGrow Calcium Nitrate 5 lb

5 lb bag — the most popular calcium nitrate on Amazon with 2,000+ reviews. Good value, dissolves easily.

4.7 · 2,007 reviews
BESTVA DC2000 Full Spectrum LED PanelPro Pick

BESTVA

BESTVA DC2000 Full Spectrum LED Panel

Dual-switch Veg+Bloom panel with quiet cooling fan. Covers 4×4 ft for flowering. Built for serious grow tent setups.

4.5 · 1,807 reviews
Southern Ag Chelated Liquid Iron 1 GallonBest Seller

Southern Ag

Southern Ag Chelated Liquid Iron 1 Gallon

1-gallon liquid chelated iron — most popular iron supplement on Amazon. Best value per litre. 6% Fe, EDTA chelated.

4.6 · 1,727 reviews
ORIMERC 3" Net Cups 12-Pack + WicksBudget Pick

ORIMERC

ORIMERC 3" Net Cups 12-Pack + Wicks

12 net cups with self-watering wicks and plant labels — the essential accessory for mason jar Kratky and DWC setups.

4.6 · 1,686 reviews
LETPOT 12-Pod WiFi + App ControlledComplete Kit

LETPOT

LETPOT 12-Pod WiFi + App Controlled

Smart hydroponics — WiFi connected, app controlled, 24W grow light, 5.5L tank, auto timer. Full control from your phone.

4.5 · 1,665 reviews
Southern Ag Calcium Nitrate 5 lb

Southern Ag

Southern Ag Calcium Nitrate 5 lb

Trusted agricultural brand. 5 lb bag — widely available, consistent quality, works well in both DWC and NFT systems.

4.6 · 1,495 reviews
Standard Hydroponics pH Up + Down 10ozBudget Pick

Dave Ocean33

Standard Hydroponics pH Up + Down 10oz

Straightforward pH Up and Down in 10oz bottles. Simple, effective, and the best-value adjuster kit on the market.

4.6 · 1,291 reviews
General Hydroponics pH Up + Down 1 QtTop Rated

General Hydroponics

General Hydroponics pH Up + Down 1 Qt

1-quart bottles of GH's trusted pH Up and pH Down — larger volume for regular growers who adjust nutrients frequently.

4.8 · 1,243 reviews
Knifel 300 GPH Submersible Pump

Knifel

Knifel 300 GPH Submersible Pump

300 GPH with overheat protection and 6ft lift height. Good for larger NFT and flood-and-drain systems.

4.3 · 1,194 reviews
Grow More 10% Iron Chelate Concentrate 24ozBudget Pick

Grow More

Grow More 10% Iron Chelate Concentrate 24oz

24oz liquid concentrate (3-0-1, 10% Fe). Easy to dose — just add a few ml per litre. Works at pH 5.5–7.0.

4.5 · 1,136 reviews
Legigo 1" Rockwool Cubes 100 Plugs

Legigo

Legigo 1" Rockwool Cubes 100 Plugs

100 starter plugs for seeds and cuttings. Ideal for germination and cloning before transplanting into DWC or NFT.

4.3 · 1,131 reviews
Grow More EDDHA Iron Chelate 6% 1 lb

Grow More

Grow More EDDHA Iron Chelate 6% 1 lb

EDDHA chelate stays stable at pH 7–9 — better than EDTA for growers with alkaline water. Dry powder, 1 lb.

4.6 · 1,033 reviews
Ahopegarden 12-Pod with LCD Display

Ahopegarden

Ahopegarden 12-Pod with LCD Display

Upgraded 12-pod version with LCD touch panel showing temp and humidity. Excellent for tracking grow environment.

4.6 · 916 reviews
YINMIK 4-in-1 pH EC TDS Temp (Backlit)

YINMIK

YINMIK 4-in-1 pH EC TDS Temp (Backlit)

Waterproof with backlit screen — ideal for reading in dim grow rooms. Shows pH, EC, TDS, and temp simultaneously.

4.3 · 789 reviews
URUQ 8-Pod Indoor Herb Garden KitBudget Pick

URUQ

URUQ 8-Pod Indoor Herb Garden Kit

8-pod countertop system with LED grow light and quiet water pump. Best entry-level kit for herbs and leafy greens.

4.5 · 546 reviews
Cz Garden Calcium Nitrate 5 lb (Made in USA)

Cz Garden Supply

Cz Garden Calcium Nitrate 5 lb (Made in USA)

Greenhouse grade, made in USA. 5 lb bag. Marketed specifically for hydroponics, tomatoes, and blossom end rot prevention.

4.7 · 543 reviews
Jackpot Micronutrient Liquid Mix 32oz

Pendelton Turf Supply

Jackpot Micronutrient Liquid Mix 32oz

32oz liquid micronutrient blend — Fe, Mn, Zn, Cu, B, Mo. Works in soil and hydroponic systems. Concentrated formula.

4.6 · 536 reviews
FoxFarm pH Down 1 Qt (Citric Acid)

FoxFarm

FoxFarm pH Down 1 Qt (Citric Acid)

FoxFarm's citric acid-based pH Down — gentler than phosphoric acid formulas. Good for organic and coco coir grows.

4.5 · 511 reviews
Down To Earth Potassium Sulfate SOP 1 lb

Down To Earth

Down To Earth Potassium Sulfate SOP 1 lb

OMRI-listed organic SOP (0-0-50), 1 lb fine 200-mesh powder. Dissolves cleanly in reservoir water, no residue.

4.7 · 450 reviews
Foster & Thrive Epsom Salt 1 lb USP

Foster & Thrive

Foster & Thrive Epsom Salt 1 lb USP

USP-certified Epsom salt — the pharmaceutical grade. 1 lb resealable pouch, unscented, 100% MgSO4.

4.7 · 422 reviews
Haifa KNO3 Potassium Nitrate 4 lb Granulated

Haifa

Haifa KNO3 Potassium Nitrate 4 lb Granulated

Haifa is one of the world's largest KNO3 manufacturers. 4 lb granulated technical grade — dissolves well at room temperature.

4.6 · 408 reviews
Haifa KNO3 Potassium Nitrate 4 lb Milled

Haifa

Haifa KNO3 Potassium Nitrate 4 lb Milled

Same Haifa quality, finer milled grind — dissolves noticeably faster than granulated. Better for concentrated stock solutions.

4.6 · 408 reviews
Humco Potassium Nitrate FCC 4 ozBudget Pick

Humco

Humco Potassium Nitrate FCC 4 oz

FCC (Food Chemical Codex) grade. Smallest size available — good for beginners mixing a first reservoir.

4.5 · 400 reviews
Cz Garden MgSO4 Epsom Salt 5 lb OMRI

Cz Garden Supply

Cz Garden MgSO4 Epsom Salt 5 lb OMRI

OMRI-listed for organic growing. 5 lb bag explicitly marketed for hydroponics, gardens, and holistic herbs.

4.6 · 384 reviews
Greenleaf Nutrients Ca(NO3)2 1 lbBudget Pick

Greenleaf Nutrients

Greenleaf Nutrients Ca(NO3)2 1 lb

1 lb starter size — perfect for testing your first batch. Greenhouse-grade calcium nitrate (15.5-0-0), fully water-soluble.

4.6 · 200 reviews
Spider Farmer 7-Gallon DWC System

Spider Farmer

Spider Farmer 7-Gallon DWC System

Traditional Deep Water Culture for serious growers — 7-gallon bucket, air pump, air stone, net pots all included.

4.4 · 165 reviews
Cz Garden SOP Potassium Sulfate 3 lb OMRITop Rated

Cz Garden Supply

Cz Garden SOP Potassium Sulfate 3 lb OMRI

3 lb bag, OMRI organic certified. Low-chloride formula enhances fruit colour and taste. Made in USA, water-soluble.

4.8 · 153 reviews
Potassium Nitrate KNO3 Powder 1 lb

Generic

Potassium Nitrate KNO3 Powder 1 lb

Laboratory grade KNO3 1 lb powder — high purity, fast-dissolving. Good step up from the starter size.

4.6 · 109 reviews
MKP 0-52-34 Haifa Grade 2 lb Water SolubleBudget Pick

Generic

MKP 0-52-34 Haifa Grade 2 lb Water Soluble

2 lb of pure MKP (0-52-34), Haifa-grade — the same purity used in commercial hydroponic operations. Fully water-soluble.

4.3 · 100 reviews
Greenway Biotech Fe-EDTA 13% 1 lb (Made in USA)Pro Pick

Greenway Biotech

Greenway Biotech Fe-EDTA 13% 1 lb (Made in USA)

Pure Fe-EDTA 13% — the exact form used in professional hydroponic formulas. 1 lb dry, 100% water soluble, Made in USA.

4.4 · 94 reviews
TPS Nutrients Potassium Sulfate Liquid 8ozBudget Pick

TPS NUTRIENTS

TPS Nutrients Potassium Sulfate Liquid 8oz

Liquid K2SO4 in 8oz bottle — easiest way to start. Just a few ml per litre. Good for small home systems.

4.1 · 28 reviews
Jack's Elementals Soluble Traces 1 lbPro Pick

Jack's Classic

Jack's Elementals Soluble Traces 1 lb

Professional dry trace element mix — designed for continuous liquid feed programs in hydro. 1 lb powder, fully water-soluble.

4.7 · 20 reviews
Go Garden MKP 0-52-34 Foliar 900g

Go Garden

Go Garden MKP 0-52-34 Foliar 900g

900g water-soluble MKP labeled specifically for foliar spray and hydroponic use. Dissolves fully, no residue.

4.2 · 18 reviews
CCS Monopotassium Phosphate Food Grade 1 kgTop Rated

CCS Consolidated Chemical

CCS Monopotassium Phosphate Food Grade 1 kg

Food-grade (Kosher/Halal) MKP — the purest form available on Amazon. 1 kg fine powder, fully water-soluble.

4.8 · 5 reviews

More products coming soon

UK & SE Asia links · EC controllers · Timers · Submersible pumps · Grow tents

Prices shown are approximate and may vary. All purchases are fulfilled by Amazon. Megaponics is a participant in the Amazon Services LLC Associates Program.