The only hydroponic equipment list you will ever need

Do not waste money on gear you do not need. Here is the exact kit for starting hydroponics, and what to ignore until much later.

A digital pH pen, a TDS meter, a measuring jug, a graduated syringe, calibration sachets and two squeeze bottles laid out on a white surface.
The short list. A pH pen and something to measure with will take you further than any gadget.

Affiliate disclosure: The Hydroponist is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. We only recommend products we have researched thoroughly. Your trust matters to us. As an Amazon Associate I earn from qualifying purchases.

Walk into a hydroponics shop as a beginner and you will be shown reservoirs, chillers, controllers, and a $300 all-in-one unit. You need almost none of it. This page is the minimalist counter-list.

Tier 1: buy these first (about $15)

ItemWhyBudget
Wide-mouth mason jar or opaque containerHolds the solution. Wide-mouth matters because a 3-inch net pot must sit on the rim.$0 to $4
3-inch net potsHold the plant and its medium above the water. Buy a 10-pack, you will use them.$5 for 10
Clay pebbles (LECA)Inert support for the roots. One small bag lasts many builds and is reusable after rinsing.$5
Hydroponic nutrient solutionThe plant food. Any reputable hydroponic nutrient works.$8 to $15

Tier 2: buy these once your first grow succeeds (about $30)

ItemWhyBudget
pH test strips or a pH penStrips are fine to start. A digital pen is more accurate and worth it once you run several systems.$5 to $15
Air pump and air stoneTurns a bucket into a DWC system and noticeably speeds growth. Aquarium pumps are the same thing at a lower price.$10 to $15
Food-grade 5-gallon bucket with lidThe standard multi-plant reservoir. Restaurants often give these away.$0 to $8
Mechanical outlet timerFor grow lights. Removes the most common lighting mistake permanently.$5

Tier 3: only if your space needs it

  • LED grow light ($20 to $40). Necessary only if you do not have a window with six or more hours of direct light. See our grow light guide.
  • EC or TDS meter ($15 to $25). Measures how concentrated your solution is. Useful when you start mixing your own ratios, not before.
  • Seedling heat mat ($15). Speeds germination in a cold room. Nice, not necessary.

What to skip, at least for now

  • All-in-one countertop systems ($150 to $300). They work, but you are paying a large premium for a pump, a light, and proprietary pods. Build two DIY systems first and decide whether you still want one.
  • Water chillers. Solve a problem most home growers do not have. Move the reservoir out of the sun instead.
  • pH up/down bottles. White vinegar and baking soda do the same job for pennies at this scale.
  • CO2 supplementation. Only relevant in a sealed high-intensity grow room.
  • Nutrient additives and boosters. A complete base nutrient already contains everything. Additives are for growers optimising the last few percent.

See the full budget breakdown

Every essential item, priced and compared, all under $50.