Short answer: if you're growing leafy greens or herbs for one or two people and have a small counter or balcony, start with the 2-bucket or 4-bucket system. If you're feeding a full household or want a serious rotation of greens coming in every week, the 5-bucket or 8-bucket system gives you the room to do it. The right size comes down to one question: how many plants do you actually want growing at once?
How DWC bucket systems work, in plain terms
Deep water culture (DWC) is one of the simplest forms of hydroponic growing: each bucket holds a nutrient-rich water reservoir, and a net pot suspends the plant's roots directly in that water, with an air pump keeping the water oxygenated so the roots don't drown. There's no soil, no weeding, and no guessing whether you've watered enough — you can see the water level and top it up when it runs low.
The number of buckets in a system is really just the number of plants you can grow at once, side by side, each in its own reservoir. More buckets means more plants growing in parallel — not a bigger reservoir per plant, and not automatically "better" for beginners. That's the piece worth understanding before choosing a size.
The four sizes, side by side
| System | Plant sites | Price (USD) | Best for |
|---|---|---|---|
| 2-Bucket Hydroponic System | 2 | ~$134 | A windowsill or small counter; trying hydroponics for the first time without committing much space |
| 4-Bucket DWC Garden | 4 | ~$149 | A small kitchen or balcony setup growing a steady supply of a couple of herbs and greens |
| 5-Bucket DWC Garden | 5 | ~$186 | Households that want a real rotation — several varieties growing and ready to harvest on different schedules |
| 8-Bucket DWC Garden | 8 | ~$232 | Serious home growers, larger households, or anyone who wants enough volume to consistently cook with homegrown greens |
USD prices are approximate conversions shown for reference — you'll see the exact price in your own currency on each product page at checkout.
Which one should you actually buy?
If this is your first hydroponic system: start smaller than you think you need. The 2-bucket or 4-bucket system is enough to learn how DWC growing actually behaves — how fast roots develop, how often you top up nutrients, how much light your space really gets — without a large upfront cost or a large footprint if it turns out not to be for you. Most people who start with 2 buckets and enjoy it end up adding a second small system rather than wishing they'd bought bigger the first time.
If you already know you want fresh greens as a regular part of your kitchen: the 5-bucket or 8-bucket system is the better value per plant — the price roughly scales with bucket count, so you're not paying a large premium for the extra capacity. An 8-bucket system growing a mix of lettuce, basil, and other fast-growing greens can realistically keep a household in fresh greens without a separate grocery trip.
A practical middle path: the 4-bucket size is the sweet spot for most apartment and small-kitchen growers — enough variety to grow two or three different plants at once, still small enough to fit on a counter, cart, or balcony shelf.
Frequently asked questions
Do more buckets mean more work?
A little — each bucket needs its water level and nutrient concentration checked, so an 8-bucket system takes longer to maintain than a 2-bucket one. But the check itself is quick (a glance at the water level, a stir), so it scales more in total minutes than in difficulty.
Can I start small and add more buckets later?
Not by expanding one unit — each DWC system here is a complete, self-contained kit. What growers typically do instead is run two smaller systems side by side once they've outgrown the first, which also spreads out the total cost.
Do all sizes need the same amount of light?
Yes, per plant — each bucket needs its own adequate light source regardless of system size, since light (not reservoir size) is what limits growth. A bigger system just means covering more plants with that same light requirement, so factor grow-light coverage into your space, not just counter space.
Is a bigger system harder for a first-time grower?
Not technically — the growing process is identical whether you have 2 buckets or 8. What changes is the commitment: more buckets means more up-front cost and more plants to keep an eye on at once. Most first-time growers find it easier to build confidence with a smaller system first.
Have questions about which hydroponic setup fits your space? Get in touch — happy to help you figure out the right size.