Grower education
How this stuff actually works
Short, plain-language guides on the science behind what goes in your tank — written for growers, sourced properly, and honest about where the limits are. No hard sell, every figure has a source, and each guide comes with an A4 print version for the bench.
The library
Guides so far
Silicon
Silica for growers: DIY methods vs. ready-made
Horsetail, rice hulls, diatomaceous earth and bamboo, side by side with a ready-made bottle — and the one bit of chemistry that decides whether any of them work.
Read the guide →
Lighting
HPS to LED: what actually changes in the room and the tank
Cooler leaves, a VPD readout that stops describing your plants, and the EC advice that turns out to have no trial behind it. Two tracks — tent room and commercial room.
Read the guide →
Coming next
More guides on the way
Got a question you keep getting asked, or one you want answered properly? Send it through and it may well become the next guide.
In the works
Grower proof series
White papers: what growers found
White paper 01 · Cannabis & hydro
The layer above your base feed
What 70+ growers found when they added Bloom over the base they already ran, plus the FROST lab result.
Read the paper →
White paper 02 · Roots
The one growers try first
20+ growers on a bull kelp extract used from cuttings through early veg, including one side-by-side.
Read the paper →
White paper 03 · Ooze
The finish everyone notices
The most-reviewed bottle in the range: 25+ growers on resin, oil and smell in weeks 5–8.
Read the paper →
White paper 04 · Phat
Size, and the frost with it
The bulk half of the flower pair: weeks 3–4, then Ooze takes over.
Read the paper →
White paper 06 · Veg stack
Roots, Ultra, Sea Minerals
The three bottles growers keep naming together in the first half of a run.
Read the paper →
White paper 07 · Flower stack
Phat, Ooze, Final
Size, then resin, then finish, and where the proof runs out.
Read the paper →
White paper 08 · Food crops
It isn’t just a cannabis line
Pepper and herb growers reporting the same things. Early notes, and we say so.
Read the paper →
White paper 09 · Living soil
Sits on top of what you built
How organic and living-soil growers use Bloom over the top, and a straight answer on certification.
Read the paper →
Prefer paper? Download the silica guide as a two-page A4 PDF.
Got a question worth answering?
nathan@bloomyellowbottles.com · (970) 556-1678 · @bloomyellowbottles · @bloom_crew_nate