King Crab® Premium Beneficial Bacteria 4oz

Concentrated Beneficial Bacteria for the Root Zone, 4oz

Root zones don't stay uniformly beneficial on their own; competing organisms and inconsistent microbial populations can leave nutrient cycling and root health inconsistent from one planting to the next. King Crab Premium Beneficial Bacteria introduces a concentrated, diverse population of plant-growth-promoting bacteria to establish and hold that ground.

The 4oz concentrate treats up to 230 gallons of water, a trial or small-grower size for testing results before committing to a larger bottle.

Key Features & Benefits

• Diverse plant-growth-promoting bacteria strains — colonize root surfaces and compete against less beneficial organisms.
• High-concentration liquid formula — a small dose treats a large volume of water across multiple applications.
• Compatible with soil, coco, and hydroponic systems — works across the growing media most cultivation setups already use.
• Supports nutrient cycling — an active bacterial population helps make nutrients available to roots.

Who Should Use This

This fits growers running soil, coco, or hydroponic systems who want to establish and maintain a beneficial bacterial population in the root zone rather than relying on the medium's existing microbial activity alone.

About Plant Revolution

Plant Revolution, the family-owned company behind King Crab, has focused on mycorrhizal and beneficial-microbe products since 1999, developing formulations for home gardeners, landscapers, farmers, and hydroponic growers.

Frequently Asked Questions

How do I apply King Crab Beneficial Bacteria

Dilute the concentrate in water according to the label's mixing ratio and apply it as part of your regular watering or feeding routine, since a single application establishes but doesn't permanently maintain the bacterial population. Repeat applications on the schedule the label recommends to keep the population active.

When should I start applying it in a grow cycle

Start early in the crop cycle, ideally at transplant or the first watering after germination, so beneficial bacteria establish before less desirable organisms take hold in the root zone. Later applications still help but work best alongside an early start.

Can I use this in a hydroponic reservoir

Yes, the product is formulated to be compatible with soil, coco, and hydroponic systems. It can go directly into a reservoir as well as a soil or coco drench.

How is the bottle size determined, gallon vs 32oz vs 4oz

Size comes down to how much water volume you're treating and how often. The label lists an approximate gallons-treated figure for each size so you can match bottle size to your growing scale and application frequency.