Ponics hydroponic nutrient calculator — Stop guessing what to add next.

Just Starting Out

New to hydroponics? Welcome. Ponics works best once you have a system running and real measurements to log — that’s when it can start helping with nutrient decisions.

If you’re not there yet, join the list — we’ll let you know when we’re ready for you:

A bucket, bottles of nutrients, and a lot of questions. That's DWC.

Ponics helps you make sense of it — calculate doses based on your plant, growth stage, current readings, and reservoir volume.

Used in-lab daily on small-bucket DWC setups for starting plants and building root systems. Community growers are helping validate larger reservoirs, longer cycles, and real-world correction patterns across nutrient brands.

You built it yourself — Ponics doesn't need to know how. Log your readings, set your reservoir volume, choose your nutrients, and get a dose calculated for your specific setup.

DIY builds cover everything from single-bucket experiments to full custom rigs. Community growers are helping validate Ponics across setups we could never reproduce in one lab — every edge case logged helps expand what the tool can handle.

One plant per reservoir. That means you can test nutrient ratios, isolate what works, and dial in species-level precision — without affecting the rest of your grow.

Hydro-Planters are our open-source hardware and primary testbed — it's how we validate individual plant species across nutrient brands and real-world conditions. Plans are shared with the community. Every grow logged on a Hydro-Planter helps expand what plants Ponics can support across all setups.

Running different plants in the same pod lineup? They don't all want the same dose. Ponics balances nutrients across your mix, works with whatever brand you've switched to, and keeps your grow knowledge yours — no matter what happens to the company.

Validated in-lab on a Harvest Elite using both AeroGarden and standard net pots, sponges, nutrients, and seeds. Community growers are helping expand support across more models, third-party nutrient brands, and mixed-pod grow styles.

iDOO gets you growing — but the nutrients it ships with won’t last forever, and the app won’t tell you what to do next. Ponics picks up where iDOO leaves off — log your readings, calculate the right dose, and use whatever nutrients you choose.

Validated in-lab on a 12-pod setup using generic net pots and sponges with generic nutrients and seeds, plus an airstone for stronger roots. Community growers are helping test across different iDOO models and third-party nutrient brands.

A tower full of tomatoes, herbs, and greens sounds great — until you realize they don’t all thrive at the same nutrient strength. Ponics helps you see where the tradeoffs are and dose for the lineup you’re actually running.

Reservoir volume based on community-shared specs. We need growers running real towers to validate dosing recommendations — especially across mixed lineups where plant tolerances differ.

Rise is designed to be simple — default nutrients, guided schedules, curated pods. That works until you want to go beyond what the defaults cover. Ponics gives you the controls Rise doesn’t — dose for your actual plants, track your readings, and grow on your own terms.

Based on community-shared specs including reservoir size and nutrient delivery. We need growers who’ve moved past Rise’s default guidance to help validate dosing accuracy across different plant selections and nutrient brands.

Eden ships with enough nutrients to get you started — but that supply runs out. When it does, you're choosing your own nutrients and mixing without guidance. Ponics helps you make that transition: log your readings, get the right dose, and keep a grow log so you're not starting from scratch every cycle.

Based on community-shared specs and published setup details. We need Eden Garden growers to help validate dosing accuracy — especially after the transition from included nutrients to third-party brands.

Gardyn's AI handles watering, lighting, and nutrient reminders — until you want to understand the numbers yourself or switch to your own nutrients. Ponics gives you that visibility: track EC and pH, calculate doses for whatever you're feeding, and learn what's actually driving your results.

Based on community-shared specs and published setup details. We need Gardyn growers to help validate dosing — especially those running third-party nutrients where Kelby's built-in guidance no longer applies.

LetPot's A&B nutrients keep it simple — same ratio, every time. But basil seedlings and mature tomatoes don't need the same dose. Ponics adjusts for what you're growing and where it is in the cycle, so your nutrients match your plants — not just your system.

Based on community-shared specs and published setup details. We need LetPot growers to help validate plant-specific dosing — especially across different models and growth stages where the standard A&B ratio may fall short.

MUFGA keeps it minimal — no app, no smart features, just a light timer and a pump. That simplicity is great, but it means nutrient decisions are entirely on you from day one. Ponics fills the gap: log your readings and get a dose calculated for what you're actually growing.

Based on community-shared specs and grower-contributed setup details. We need MUFGA owners to help validate dosing across different plants and nutrient brands.

Elfsys automates lights, watering, and scheduling — but nutrients are on you. The app knows your growth stage and tracks your devices, but it doesn't calculate what to feed. Ponics fills that gap: dose based on your plants, your stage, and your current readings.

Based on community-shared specs and published setup details. We need Elfsys growers to help validate nutrient dosing across multi-layer configurations — especially where stage-based feeding needs differ from what a single template covers.