Plant Success King Crab – 1 Gallon

Plant Success King Crab is a liquid bacterial inoculant from Plant Revolution formulated to increase phosphorous solubility and micronutrient availability in the root zone. With 275 million organisms per mL drawn from 11 selected bacterial species, King Crab supports plant performance during the vegetative stage and improves yield potential through the flowering stage. It is compatible with soil and hydroponic systems and works alongside any fertilizer program.

Plant Success King Crab Specifications

The following table covers the key technical details for Plant Success King Crab – 1 Gallon as provided by manufacturer documentation.

Specification	Value
Brand	Plant Success (Plant Revolution)
Product Name	King Crab
Size	1 Gallon (128 fl oz)
Formulation	Liquid concentrate
Microbial Load	275 million organisms per mL
Number of Bacterial Species	11
Primary Function	Phosphorous solubilization and micronutrient availability
Application Rate	1/2 mL per gallon of water
Compatible Media	Soil and hydroponics
Fertilizer Compatibility	Works with any fertilizer line
Weight (shipping)	8.01 lb
SKU	PRPSKICR1G

Why Choose Plant Success King Crab

King Crab is a targeted microbial supplement built around a single, well-defined mechanism: getting more phosphorous and micronutrients into plant tissue. Here is what separates it from broad-spectrum inoculants or generic soil amendments.

• High microbial density at the point of use. At 275 million organisms per mL, King Crab delivers a concentrated population of active bacteria directly to the root zone. A half-milliliter dose per gallon of irrigation water is sufficient to establish a viable microbial presence around the roots.
• Eleven bacterial species selected specifically for phosphorous solubilization. Many phosphorous sources in soil and growing media exist in forms that plant roots cannot directly absorb. The bacteria in King Crab produce organic acids and enzymes that convert bound phosphorous into plant-available forms, making the nutrient accessible without increasing total fertilizer input.
• Active across both vegetative and flowering stages. The bacterial strains were selected with the full crop cycle in mind. During vegetative growth they support root development and nutrient uptake efficiency; during flowering they help make the phosphorous and micronutrients available that support bud development and yield.
• Works with soil and hydroponic systems. King Crab does not require a specific growing medium. It can be used in soil, coco, and recirculating or drain-to-waste hydroponic setups by mixing into the irrigation water and saturating the root zone.
• Compatible with any fertilizer program. Because King Crab operates through a biological mechanism rather than a direct nutrient addition, it does not compete with or interfere with existing feed programs. Growers can add it to established nutrient schedules without reformulating.

Best Uses for Plant Success King Crab

King Crab is a broadly applicable microbial supplement. The following situations represent where it is most likely to provide measurable benefit.

• Growers running high-phosphorous nutrient programs. When crops are fed significant phosphorous but uptake efficiency is a limiting factor, King Crab’s phosphorous-solubilizing bacteria can improve the conversion of nutrient inputs into plant-available phosphate. This applies particularly to growers using organic or slow-release phosphorous sources where solubilization is inherently slower.
• Root zone establishment in new transplants and seedlings. Introducing King Crab at transplant or early root development adds a population of beneficial bacteria at the point when the root microbiome is being established. Early inoculation can support a healthier rhizosphere before competing microbes populate the growing medium.
• Soil and coco growers seeking improved micronutrient absorption. Phosphorous solubilization is closely linked to micronutrient availability. Growers experiencing signs of micronutrient deficiency even with adequate feed inputs may benefit from improving the biological activity in the root zone, which King Crab is designed to support.
• Hydroponic systems where biological root support is minimal. Inert hydroponic media provide no native microbial population. Inoculating with King Crab introduces targeted bacterial species that can colonize root surfaces and growing media, providing a biological layer that recirculating-only nutrient delivery does not include. This pairs well with other root-health products such as Heavy 16 Roots in comprehensive root-zone programs.
• Late vegetative and early flowering transition. The period when plants shift from vegetative to reproductive growth places high phosphorous demand on the root system. Using King Crab through this transition period aligns the peak bacterial activity with peak plant phosphorous demand.
• Large-scale operations where per-gallon cost of inoculants is a consideration. At 1/2 mL per gallon of irrigation water, the 1-gallon size of King Crab treats approximately 7,571 gallons of irrigation solution, making the per-application cost relatively low across large canopy areas or multi-cycle programs.

Plant Success King Crab vs Similar Products

Phosphorous-solubilizing bacterial products are available from several brands in the hydroponics market. The most relevant comparison for King Crab is the category of single-function microbial concentrates focused on phosphorous and micronutrient availability, as distinct from broad-spectrum mycorrhizal inoculants or general root colonizers.

King Crab focuses exclusively on bacteria rather than mycorrhizal fungi. Products like Advanced Nutrients Tarantula are also bacterial root colonizers, but formulated across a broader set of bacterial strains for general root-zone health rather than phosphorous solubilization specifically. Growers who already have a general bacterial supplement in their program and want a targeted phosphorous-focused addition may find King Crab a better fit for that role than a second broad-spectrum product.

Dry or granular phosphorous-solubilizing amendments such as Down to Earth Crab Meal provide phosphorous as a slow-release nutrient source and support soil biology passively over time. King Crab, as a liquid concentrate applied through irrigation, delivers active organisms directly to the root zone at each watering, which is better suited to hydroponic systems and to growers who want application control tied to their feed schedule rather than a substrate amendment that releases over weeks.

At the 1-gallon size, King Crab is priced for production-scale use. Growers running smaller operations or wanting to evaluate the product before committing to a gallon may find the 32 oz or 4 oz sizes (available separately) a better entry point.

Compatibility

King Crab is a liquid bacterial supplement with broad compatibility across common growing setups and nutrient programs.

Growing media: Compatible with soil, amended potting mixes, coco coir, rockwool, clay pebbles, and other inert hydroponic substrates. The bacteria require moisture to become active, so it performs best in media that maintains adequate water-holding capacity in the root zone.

System types: Suitable for soil and hydroponic applications as specified by the manufacturer. This includes drain-to-waste and recirculating systems. Application method is consistent across both: mix into irrigation water and apply directly to the root zone.

Nutrient programs: King Crab is compatible with any fertilizer line. It does not require a specific nutrient brand or formulation. Growers using synthetic, organic, or hybrid nutrient programs can incorporate King Crab without modifying their existing schedule.

pH range: Manufacturer documentation specifies application at 1/2 mL per gallon after mixing into treated water. Standard practice is to pH-adjust the solution after adding supplements and before applying to plants. For most crops grown in hydroponic or soil setups, a solution pH of 5.8–6.5 is appropriate. Follow the pH targets for your specific crop and medium.

Interaction with other microbial products: King Crab can be used alongside mycorrhizal inoculants and other beneficial bacteria. Because it targets phosphorous solubilization specifically, it occupies a defined niche in the root microbiome rather than competing with broad-spectrum inoculants for the same functional role. Avoid mixing with broad-spectrum fungicides or high-concentration hydrogen peroxide solutions that would reduce viable bacterial populations before application.

Dosing Guidelines

The application rate for King Crab is straightforward and consistent across growing methods.

Standard dose (soil and hydroponics): Mix 1/2 mL (0.5 mL) of King Crab per 1 gallon of water. Apply the solution directly to the root zone, saturating the roots thoroughly. This rate applies whether you are irrigating a soil medium or feeding a hydroponic system.

At this dose rate, the 1-gallon (128 fl oz / approximately 3,785 mL) container yields roughly 7,570 single-gallon applications, or approximately 7,570 gallons of treated irrigation solution.

Application frequency: The canonical product documentation does not specify a required application frequency. Standard practice for microbial supplements in production growing is to apply with every watering or every other watering through the vegetative and early flowering stages to maintain an active bacterial population in the root zone. Frequency can be reduced during mid-to-late flowering once the rhizosphere microbiome is established.

Measurement tools: Use a calibrated syringe or pipette for accuracy at the 0.5 mL scale. Kitchen measuring spoons introduce imprecision at this volume. A 1 mL or 3 mL syringe is sufficient for single-gallon measurements; larger production runs may use a dosing pump calibrated to the target rate.

Storage: Liquid microbial concentrates should be stored in a cool location away from direct heat and sunlight. Refrigeration extends shelf life. Check the container for manufacturer-recommended storage temperature and expiration date before use.

How to Use Plant Success King Crab

The following steps describe a standard application process for King Crab in soil and hydroponic systems.

1. Shake or swirl the King Crab bottle before measuring to distribute the bacterial suspension evenly throughout the liquid.
2. Fill your reservoir, watering can, or mixing vessel with the target volume of water (already at the appropriate temperature for your system).
3. Measure 1/2 mL of King Crab per gallon of water using a calibrated syringe. For example, a 10-gallon reservoir requires 5 mL of King Crab.
4. Add the measured King Crab to the water and mix thoroughly.
5. Adjust the pH of the solution to the appropriate range for your crop and growing medium (typically 5.8–6.5). Add King Crab before the final pH adjustment so the pH reading reflects the complete solution.
6. Verify the EC of the final solution is within the target range for your crop’s growth stage. King Crab does not add significant EC at this dose rate, so EC adjustment is driven by your base nutrient program.
7. Apply the solution to the root zone by irrigating to saturation. In soil and coco, water to runoff on first application to ensure the bacterial solution reaches the full root mass. In hydroponic systems, circulate normally.
8. Repeat at each watering or on your chosen frequency through the vegetative and early flowering stages.

Sources & Further Reading