Front Row Ag is a dry, water-soluble fertilizer line engineered for commercial cultivation. The core is a three-part base — Part A (14-0-8), Part B (2-13-17), and Bloom (0-35-29) — supported by silica, enzyme and microbial biostimulants, a line cleaner, and pH adjustment. Because everything is 100% soluble with zero sediment, it doses cleanly through commercial injectors and drip without clogging.
Two documented mixing methods cover every operation: Direct-to-Reservoir for batch tanks and 3-2-2 / 4-3-3 Stock Concentrates for injector-based fertigation. Published per-stage feed charts, a fertigation setup guide, cloning SOP, and free online certification make it straightforward to dial in — or use the calculator below to generate dosing for any reservoir.
Part A, Part B & Bloom replace multi-bottle liquid programs — fewer SKUs, less labor, lower cost per gallon.
Dry concentrates with zero sediment — Dosatron-ready and safe for drip emitters and automated fertigation.
Run Direct-to-Reservoir or mix 3-2-2 / 4-3-3 stock concentrates. Published feed charts for every stage.
25 lb bags and bundle pricing engineered for licensed facilities, not just hobby grows.
Free Front Row Ag Certified training, fertigation guides, cloning SOPs and a custom feed-chart calculator.
Licensed facilities can request a structured trial before committing — see the form below.
Enter your reservoir size and stage to get a starting dose for the 3-part base. Built on Front Row Ag’s published EC coefficients (Part A 0.322, Part B 0.255, Bloom 0.200 EC/g·gal). Always validate EC & pH and adjust to your facility.
Mixing order: fill tank → Si → Part A → Part B → Bloom → PhosZyme (with Part B) → pH Up to target. Agitate 3–5 min between each. For full per-stage detail, open the Direct-to-Reservoir feed chart.
Watch the full Front Row Ag channel →
Front Row Ag trials are available to licensed commercial cultivation facilities only. Tell us about your operation and we’ll put together a structured trial with feed charts and support.
A valid state cultivation license number is required to qualify.
Get commercial pricing and a program dialed to your facility — no obligation.
Pricing isn’t published. Create a Hydro Supply account and your rates appear on every size — order online, track shipments, and reorder in a click.
Front Row publishes three ways to run the same three-part program. Which one you use is decided by your injection equipment, not your room size. Everything below is from Front Row’s own feed-chart sheets.
| 3-2-2 | 4-3-3 | Direct to Reservoir | |
|---|---|---|---|
| What it is | Stock concentrate — 3 bags Part A, 2 Part B, 2 Bloom per 50 gal tank | Stock concentrate — 4 bags Part A per 53.5 gal, 3 Part B and 3 Bloom per 60 gal | No stock tank — product goes straight into the reservoir |
| Front Row’s guidance | “Best for most situations” | For injection equipment needing higher stock concentration and/or lower injection ranges | Batch or RTU tank feeding |
| Why | Uses whole bags and creates equal stock volumes, used at the same rate | Same equal-injection benefit at a stronger concentration | Removes the stock-tank step entirely |
| Injection | Each part injected equally | Each part injected equally | Not injected — mixed to final volume |
| Water | RO | RO | RO — account for any starting EC |
| Mixing order | Dissolve each part into its own stock tank | Fill to 50% RO, add over 5 min while agitating, top up, mix 10 min | Si → Part A → Part B → Bloom → pH Up, 3–5 min between each |
| Shelf life | Use stock within 2–4 weeks | Use stock within 2–4 weeks | 48 hours with Si; 5–7 days without |
| Validation | 50 ml stock into 1 gal RO, check EC against the chart | 50 ml stock into 1 gal RO, check EC against the chart | Validate pH/EC in the reservoir and adjust |
Si usage falls as feed EC rises.
| Feed EC | Si usage rate (ml/L) |
|---|---|
| < 2.3 | 0.13 |
| 2.3–2.7 | 0.10 |
| 2.7–3.1 | 0.07 |
| 3.1–3.5 | 0.03 |
| > 3.5 | 0 |
Front Row is explicit that feed charts are not a prescription. Most facilities run 2.0–3.0 EC; smaller pots, frequent irrigation, higher PPFD, higher CO₂ and heavy-feeding cultivars push it up, and the reverse pulls it down.
It is the number of 25 lb bags of each product going into a stock tank: three bags of Part A, two of Part B and two of Bloom per 50 gallons. Mixing this way lets each part be injected at the same rate, which is why Front Row calls it best for most situations.
3-2-2 is the default. Move to 4-3-3 when your injection equipment needs a higher stock concentration or works at lower injection ranges — it is four bags of Part A per 53.5 gal and three each of Part B and Bloom per 60 gal. Both keep the parts injecting equally.
DTR skips the stock tank: you mix product straight into the reservoir to final volume. It suits batch or ready-to-use tank feeding rather than injection. The trade-off is shelf life — a DTR reservoir with Front Row Si must be used within 48 hours, and 5–7 days without it.
Two to four weeks. Front Row advises mixing only what you need, storing in covered opaque containers in a climate-controlled area, and never mixing oxidising compounds into a stock concentrate.
Si rate moves inversely with feed EC: 0.13 ml/L below 2.3 EC, 0.10 at 2.3–2.7, 0.07 at 2.7–3.1, 0.03 at 3.1–3.5, and none above 3.5 EC.
Front Row says most facilities feed at 2.0–3.0 EC, and their Standard and High Strength charts reflect that range. They are explicit that it is not a prescription — pot size, irrigation frequency, PPFD, CO₂ and cultivar all push the number up or down.
Full specs, common questions and a quote request for each.
