
AN pH Perfect Sensi Bloom A & B (1 L Set): Starter Hydroponic Bloom Base
The Sensi Bloom 1-liter A & B set is the starter pair for growers moving past trial bottles but not yet running a full-size jug program. Part A carries calcium, iron, and a portion of the nitrogen. Part B carries phosphorus, potassium, and the chelated micros. The A/B separation keeps calcium from precipitating with phosphorus in the concentrate, which is the fundamental chemistry behind any serious two-part hydroponic base. pH Perfect Technology holds reservoir pH in the 5.5–6.3 sweet spot without manual adjustment — and at the 1 L scale, this is the size where new Sensi users see pH Perfect buffering prove itself over a single short flower cycle.
Single-Tent Size Before Stepping Up to 4 L or 10 L Jugs
The 1 L pair fits a single-tent grow running a compact flower cycle. It's the next step after the 500 mL trial bottles and one step below the 4 L home-grow pair. Dose at 1:1 across the flowering phase for the standard bloom base. Growers who've been using Jungle Juice Bloom or another base often pick up the 1 L Sensi set to test pH Perfect in a side-by-side before committing to 4 L or 10 L for the next full cycle. This is also the size retailers stock as an upsell from the 500 mL trial pair.
Key Features
- Matched 1 L Jugs: Starter pair of the pH Perfect Sensi Bloom A & B two-part base — fits a single-tent flower cycle.
- pH Perfect Technology: Auto-buffers reservoir pH to 5.5–6.3 without daily manual adjustment across a compact flower cycle.
- Step Up from 500 mL Trial: Natural move from the 500 mL trial bottles once a grower has tested the Sensi chemistry.
- A/B Chemistry Separation: Calcium and iron on A, phosphorus and micros on B — prevents concentrate precipitation in storage.
- 1:1 Mixing for Simplicity: Equal-parts dosing keeps the feed chart straightforward for growers new to the Sensi program.