TeraGanix and Bloom
TeraGanix sells microbes and compost gear. Bloom sells liquid tonics and stage additives. Two different jobs, and they can sit in the same garden. Here’s how they line up.
Last checked 5 November 2026 · Public information only
This Fit Report is a summary of publicly available information about TeraGanix and its products, taken from their own website, labels and published material as of 5 November 2026. We’ve linked each source so you can check it yourself. Rates are as printed on each company’s own pages; we don’t show prices. It isn’t affiliated with, endorsed by or approved by TeraGanix, and product names belong to their owners. Products, rates and claims change, so please confirm current details with the manufacturer before making any decision. Spotted something out of date? Email nathan@bloomyellowbottles.com and we’ll correct it.
Their microbes, our tonics in the same root zone.
TeraGanix is built around one product: TCM, a consortium of lactic acid bacteria, yeast and purple non-sulfur bacteria. Bloom doesn’t make a microbial inoculant at all. What Bloom does make is the liquid side: kelp, tuna, humic acid, sea minerals and an additive for each stage of the crop. Different bottles, different jobs (our read).
- Stays as is: TCM, the Compost Activator, Bokashi Bran and the composting kit.
- No head-to-head: nothing in Bloom’s range does what TCM does, and the reverse.
- Where Bloom adds: Seaweed, Seafuel, Humate and Sea Minerals weekly, plus stage additives.
TeraGanix and Bloom in short
TCM, the Compost Activator, Bokashi Bran and their testing gear.
Nothing. Bloom has no inoculant and TeraGanix has no tonics.
Seaweed, Seafuel, Humate, Sea Minerals, Cal-Mag, a base, and the Pre, Ultra and Final stage additives.
Where the programs complement each other
Microbes and tonics on the same shelf
TeraGanix sells to gardeners, homesteaders and farms. Bloom has no microbial inoculant and TeraGanix has no kelp, humic or stage additives, so neither bottle crowds the other (our read).
TCM in the soil, Humate in the feed
TCM goes on weekly in hydro or every 1–2 weeks on vegetables and flowers. Humate runs at 2.5 ml/L weekly. Kept in separate mixes, they share one root zone (our read).
Compost and bokashi growers
TeraGanix has a bokashi and compost following. A plain guide on adding liquid kelp and humic to a compost-fed garden would suit both audiences (our read).
Their line, Bloom’s fit at a glance
Matched on job. TeraGanix prints rates per US gallon and by tablespoon; Bloom prints ml per litre on a weekly feed chart. Tap a tag to filter.
This is TeraGanix’s core job. Nothing in Bloom’s range overlaps it.
A home-brew step on their side. Bloom bottles go straight in the tank.
Compost making stays with TeraGanix.
Bokashi is their space. Bloom has no dry products.
Handy for checking a brew or a soil. Bloom doesn’t sell testing gear.
Southern bull kelp, and a tuna and kelp tonic, through the cycle.
10% humic acid in the root zone the microbes are already working in.
Trace minerals from sea water, a small dose on top.
TCM is an inoculant, not a feed. A grower still needs a base, and Bloom has two-part options.
Calcium and magnesium with iron and zinc, grow and bloom.
One additive for mid veg, one for the flip, one for the last two weeks.
Why each one fits
What the Bloom product does, the research behind that kind of input, and where it sits in a program that already runs.
Humic acid next to the microbes
What it does. Humate is 10% humic acid at 2.5 ml/L weekly, from seedling through the flush.
A 2021 review looks at humic substances used together with plant growth-promoting bacteria. Several studies it covers saw more growth or nutrient uptake from the pair, a few saw no gain. None of them test TCM’s organisms or Bloom’s Humate.
How it stacks. TeraGanix says to dilute the activated brew 1:100 and never use it neat; its pH sits at 3.2–3.8. Our read: mix TCM in its own water, apply it, and run Humate in the weekly nutrient feed rather than the same jug.
Kelp and tuna in the tank
What it does. Seaweed is southern bull kelp; Seafuel is tuna and kelp. Both run at 1 ml/L weekly: Seaweed from seedling through the flush, Seafuel from clone through late flower, tapering at the flush.
Reviews of seaweed extracts report effects on growth and stress tolerance across many crops. Work on protein hydrolysates, which fish inputs belong to, is newer and links them to nutrient uptake. None of it tests these bottles.
Ali et al. (2021), Plants (review) · Malécange et al. (2023), Int J Mol Sci (review)
How it stacks. TCM’s hydro rate is once a week, so is Bloom’s chart. Our read: run them on different days of the week and check both labels before tank-mixing.
One bottle per stage
What it does. Pre in mid veg (weeks 2–3), Ultra at the flip (flower weeks 1–2), Final for the last two weeks including the flush, running alongside Ooze. 1 ml/L each, weekly. These are timing tools, so there’s no study cited for them here.
How it stacks. TCM’s chart runs by plant type, not crop stage. Bloom’s stage bottles add the week-by-week plan on top (our read).
Where each bottle sits in the cycle
TeraGanix’s timing in grey, Bloom’s in yellow, across shared stages of the grow.
| Stage | Root | Veg | Flip | 3–4 | 5+ | Last 2 | Flush |
|---|---|---|---|---|---|---|---|
| TeraGanix, per their pages | |||||||
| TCM, seeds and seedlings (weekly) | |||||||
| TCM, hydro water (weekly) | |||||||
| TCM, vegetables and flowers (1–2 weeks) | |||||||
| Bloom, per Bloom’s weekly feed charts | |||||||
| Roots | |||||||
| Pre | |||||||
| Ultra | |||||||
| Phat (weeks 3 and 4) | |||||||
| Ooze (wk 5 to flush) | |||||||
| Final (with Ooze) | |||||||
| Seafuel | |||||||
| Seaweed · Humate · Sea Minerals | |||||||
| SWTNR | |||||||
| Cal-Mag | |||||||
| Groigen (foliar, as needed) | |||||||
| Florigen (foliar, as needed) | |||||||
| PK (as needed) | |||||||
| Silica | |||||||
TeraGanix’s chart is set by plant type, not crop stage: seeds and seedlings once a week, hydroponics once a week, vegetables and flowers every 1–2 weeks. Their page gives no stop week, so the flush bar is pale (our read). Bloom’s bars follow its weekly feed charts; pale Bloom bars are as-needed bottles.
Already covered
- Microbes. TCM, a lactic acid bacteria, yeast and purple non-sulfur bacteria consortium.
- Compost and bokashi. Compost Activator, Bokashi Bran, bins and worm supplies.
- Testing. pH strips and the microBIOMETER soil kit.
- Other lines. Septic, waste treatment, poultry and livestock products.
Stays exactly as is
- TCM. Bloom has no inoculant, so it stays on TeraGanix’s schedule.
- Compost and bokashi gear. Untouched by anything Bloom sells.
- Brew pH checks. Keep testing the activated brew as their page says.
Background, science and sources
Who TeraGanix are
TeraGanix sells microbial products online and says it has been trusted for 20+ years. Its about page names Chad Krause as CEO. The pages we read don’t state a location or a parent company.
The main product is TCM Microbial Inoculant and Soil Amendment, sold from 16 oz up to 5 gallons with drums and totes on quote. Some of their instructions and links still use the EM-1 name. Around it sit a Compost Activator, Bokashi Bran and bins, worm supplies, pH strips, a soil test kit, septic and waste treatments, and probiotics and cleaners for poultry and livestock. They sell direct, with subscriptions, a wholesale and reseller program, an affiliate program and custom farm programs.
What each company brings
TeraGanix: A consortium microbial inoculant with rates for vegetables, fruit trees, lawns, seedlings, hydroponics and houseplants, plus compost, bokashi and soil testing supplies.
Bloom: one additive for each stage of the crop, seaweed, humic and sea mineral inputs, foliar sprays, and weekly feed charts for soil, coco and hydro. Rates and timing are on every product page.
Cropping Solutions, the other brand under Agricultural Organics, isn’t part of this report.
Dose basis: how each side counts
TeraGanix prints rates per US gallon: 3 Tbsp per gallon for most soil uses and 0.8 tsp per gallon for hydroponic water, once a week. At 3.785 L to the gallon, 0.8 tsp (about 3.9 ml) per gallon is about 1 ml/L.
TCM is a microbial product and Bloom’s bottles are plant tonics and nutrients, so the numbers measure different things. Use the calculator for mixing, not for comparing.
Mix calculator
Rates as printed on each company’s page (1 US gallon is 3.785 L). Bloom’s rates are per litre of nutrient solution, dosed weekly per its feed charts. Pick a product and your tank size.
Seaweed extracts as biostimulantsWell supported
Ali and colleagues (2021) review seaweed extracts in crops: germination, root growth, nutrient uptake, flowering and yield, plus tolerance to drought, salinity and cold.
Why it matters here: TeraGanix’s range has no seaweed input, and Bloom’s Seaweed and Seafuel are kelp based. The review is general and doesn’t test either company’s products.
Sources, all viewed 5 November 2026
TeraGanix: Home · About · TCM Microbial Inoculant · Compost Activator · Composting supplies · Agriculture
Bloom: Roots · Pre · Ultra · Phat · Ooze · Final · Seafuel · Seaweed · SWTNR · Humate · Cal-Mag · Groigen · Florigen · Sea Minerals · PK · Euro · Grow · Flower · Silica · OrganiShield
Last checked 5 November 2026. Public information only. Not affiliated with, endorsed by or approved by TeraGanix; product names belong to their owners. Please confirm current details with the manufacturer. Corrections: nathan@bloomyellowbottles.com. All Fit Reports