KIS Organics Original Water Only Soil Mix
KIS Organics Original Water Only Soil Mix
A truly water only-only soil from seed to harvest.
Use a 7-10g pot and just add water.
KiS Organics Water Only Soil is a fully pre-loaded living soil: 22 organic ingredients, an active microbial ecosystem, and enough buffered nutrition to carry most plants from seedling to harvest on plain water alone. No feeding schedule, no pH adjusting, no mid-cycle deficiency chasing. The biology in the soil handles nutrient cycling - your only input is water.
- Measure, mix, and pH-adjust every feeding
- Nutrient lockout and deficiencies when ratios are off
- Dump and replace media every single cycle
- Ongoing bottle cost: $50–$200+ per grow
- Flat terpene expression common with synthetic inputs
- No living biology - sterile media needs constant feeding
- Water only - soil biology releases nutrients as the plant demands them
- Naturally pH-buffered - mineral blend prevents lockout
- Reusable for years - re-amend a 10-gal pot for under $8 per cycle
- One 1.5 cu ft bag covers a full grow cycle in a 10-gal pot
- Broader organic inputs support full terpene biosynthesis
- Microbes, mycorrhizae, and compost - living from day one
The real economics of water-only growing
Water only - seedling to harvest No bottles needed
The soil contains enough pre-loaded organic nutrition to carry most plants through a complete grow cycle with no added fertilizer. KiS designed it, lab-tested it, and registered it as a fertilizer product - held to a higher regulatory standard than a standard potting mix.
Lab- and microscope-verified microbial community
KiS tests every batch of compost and peat for biological activity before it goes into the mix, then inoculates the finished soil with additional microorganisms and Microbe Catalyst. The microbes convert bound organic nutrients into plant-available forms on demand - which is why no external feeding schedule is needed.
Reusable - re-amend a 10-gal pot for under $8 per cycle 5+ yrs tested
After harvest, top-dress with KiS Nutrient Pack (Small, 3.2 lbs covers ~1 cu ft) plus a cup of worm castings, water in, and wait 7–14 days. KiS has run the same indoor beds for over five years without replacing the base soil. The biology improves each cycle as the microbial community matures.
Self-buffering pH - oyster shell, calcite, basalt, ag lime
The mineral stack keeps the soil pH stable without intervention. These slow-dissolving carbonates and silicates buffer against both acidification (from organic breakdown) and alkalinity creep. Most growers water straight from the tap with no pH adjustment and see no issues.
Independent heavy metal testing - Brookside Labs & Delta Labs
Heavy metals are the real concern with organic amendments (fish meal, bone meal, crustacean meal all carry risk). KiS has the soil independently tested by two separate labs and publishes the results. The unique mineral pH manipulation keeps any trace metals relatively unavailable for plant uptake. Reports are public on their site.
22 organic inputs - not just N-P-K
Terpene biosynthesis requires trace minerals, secondary metabolites, and specific enzyme cofactors that a 3-part bottled nutrient program doesn't supply. Glacial rock dust, basalt, kelp, neem cake, karanja cake, crustacean meal - these inputs cover the full spectrum, which is why growers switching from coco/synthetic consistently report improved aroma and flavor depth.
Full Ingredient Disclosure - 22 organic & natural inputs
Sphagnum Peat Moss, Oly Mountain Fish Compost, Earthworm Castings, Volcanic Pumice, KiS Organics Microbe Catalyst, Glacial Rock Dust, Basalt, Calphos Soft Rock Phosphate, Oyster Shell Powder, Organic Alfalfa Meal, Organic Fish Bone Meal, Organic Crustacean Meal, Kelp Meal (Ascophyllum nodosum), Neem Cake, Karanja Cake, Organic Fish Meal, Organic Feather Meal, Organic Steamed Bone Meal, Natural Calcite, Ag Lime, Mycorrhiza, and Beneficial Microbes.
How it works - the whole process, start to finish
Fill your container
Pour KiS Water Only Soil directly into your container - no mixing, no amending, no letting it "cook." The 1.5 cu ft bag fills approximately a 10-gallon fabric pot.
Plant into a seed-starter pocket
Dig a small hole in the top of your filled container, pack it with a light seed-starting mix, and plant your seed or transplant into that pocket. Once the taproot grows down into the KiS soil below, the water-only system takes over.
Water regularly - that's it
Keep the soil near field capacity: grab a handful and squeeze - only a drop or two should come out. If you're using a Blumat moisture meter, target 80–120 mbar. No nutrients, no pH adjusting, no feeding schedule to follow.
Harvest, re-amend, repeat
After harvest, top-dress with KiS Nutrient Pack (Small size, ~$8 per 10-gal pot) plus a cup of worm castings or compost. Water it in, rest 7-14 days, and you're ready for another cycle.
- Full grow-cycle nutrition - no bottle program needed
- Live biology - microbes, mycorrhizae & Microbe Catalyst
- Volcanic pumice for aeration and drainage
- Glacial rock dust + basalt for trace mineral spectrum
- Neem cake + karanja cake for natural pest suppression
- Registered as fertilizer - heavy metal tested
- 5-gal fabric pot: ~0.75 cu ft - one bag fills two 5-gallon pots
- 7-gal fabric pot: ~1 cu ft - one bag fills one 7-gal with some left over
- 10-gal fabric pot: ~1.5 cu ft - one bag, one pot, exact fit
- 15-gal fabric pot: ~2 cu ft - two bags covers one 15-gal with room to spare
- Pair with: KiS Nutrient Pack for re-amending between cycles (sold separately)
Questions? We're easy to reach.
Happy Hydro has been serving growers since 2006. Call or email us before you order, after you order, or any time something comes up. When you're happy, we're happy.