Starting a Home Hydroponic System: What You Really Need to Buy

Hydroponics lets you grow food in apartments, basements, closets—anywhere with power and water. But supply lists online range from $50 to $50,000. Here's the reality: a functional starter system costs $100–$300. Commercial gear is for commercial scale.

Minimum Viable System (Deep Water Culture)

5-gal bucket + lid ($5). Net pot (6") ($1). Air pump + stone ($15). Hydroponic nutrients (A/B) ($20). pH kit (drops or meter) ($15). Grow light (T5 2-ft or LED panel) ($40–$80). Seeds/rockwool ($10). Total: ~$110. Grows 1 lettuce, 1 herb, or 1 tomato.

Scale-Up Path: Modular, Not Monolithic

4-bucket DWC: Shared reservoir, single pump. NFT channels: 4-ft PVC, 3" net pots, recirculating. Ebb & flow: Tray + timer + pump. Each adds $50–$150. Buy one expansion at a time. Learn. Then grow.

Where to Spend vs. Save

Spend on: Light (PAR output), nutrients (complete, chelated), pH meter (reliable), environmental control (temp/humidity). Save on: Fancy reservoirs, branded net pots, automated dosers (manual is fine <20 plants), CO₂ (unnecessary <500 sq ft).

Shipping Reality

Nutrients and media ship heavy. Buy 6–12 month supply. Free shipping thresholds matter. Local hydro shops: higher per-unit, but no freight, instant restock, expert advice. Build relationship.

Education > Equipment

A $500 system run poorly fails. A $150 system run well produces. Read: "Hydroponic Food Production" (Resh), university extensions, manufacturer guides. Join a forum. Track: pH, EC, temp, humidity, growth rate. Data teaches faster than gear.