Microbe Life Photosynthesis Plus, 1 gal

Microbe Life Photosynthesis Plus is a 1-gallon liquid microbial supplement formulated to support and accelerate plant photosynthesis from both the foliar surface and root zone. It contains a stable culture consortium of microorganisms that help convert carbon dioxide into available carbon, driving plant biology in growing media that may be partially or entirely void of native organisms.

Microbe Life Photosynthesis Plus Specifications

Key product specifications for Microbe Life Photosynthesis Plus, 1 gallon (SKU: ML21228). Attributes not published by the manufacturer are noted accordingly.

Specification	Value
Brand	Microbe Life Hydroponics
SKU / Model	ML21228
Container Size	1 gallon (128 fl oz)
Product Type	Liquid microbial culture consortium / biological supplement
Primary Function	Supports photosynthetic processes; improves CO₂-to-carbon conversion at foliar and root zones
Application Method	Foliar spray and/or root zone drench
Category	Nutrients & Additives — Growth & Bloom Boosters

Why Choose Microbe Life Photosynthesis Plus

Photosynthesis Plus is distinguished by its use of stable microorganisms — microbes that remain viable over shelf life and activate quickly once introduced to a growing environment. Most microbial inoculants focus exclusively on root-zone colonization; Photosynthesis Plus is formulated to work at both the foliar level and the root zone simultaneously, addressing plant biology from two access points rather than one.

The product is particularly useful in sterile or near-sterile growing media. Hydroponic systems, coco coir, rockwool, and other inert substrates often lack the native microbial populations that soil growers take for granted. Photosynthesis Plus rapidly establishes the essential plant-supporting biology that these media are missing, giving roots and leaves the biological support structure that would otherwise need to develop slowly over multiple grow cycles.

The mechanism described by the manufacturer centers on improving the plant’s conversion of carbon dioxide into available carbon — a process that fuels cellular energy requirements throughout the vegetative and flowering stages. By supporting this pathway, the product is intended to contribute to plant vigor and yield over the course of a full grow rather than acting as a single-event inoculant.

• Dual-action application: works at both the foliar surface and the root zone, not just one location.
• Stable microorganism culture: the consortium is formulated to remain viable through packaging and storage, not just lab conditions.
• Effective in sterile media: establishes plant-supporting biology even where native organisms are absent, making it suited to hydroponics and inert grow media.
• CO₂-to-carbon conversion support: targets the photosynthetic process directly, rather than only supplying nutrients or hormones.
• Broad plant compatibility: applicable to a range of crops and growing environments where improving plant vigor and yield is the goal.

Best Uses for Microbe Life Photosynthesis Plus

Photosynthesis Plus fits into grow programs where growers want to add biological support without disrupting a tightly managed nutrient schedule. The following use cases reflect what the product is designed to address based on the manufacturer’s description.

• Hydroponic and aeroponic systems: recirculating systems using inert media benefit from added biology at the root zone, which the product is specifically designed to establish from scratch. Pair with a solid root-zone additive like Advanced Nutrients Tarantula for a more complete microbial program.
• Coco coir and rockwool grows: these sterile substrates provide no native microbial population; Photosynthesis Plus addresses this gap by introducing a stable culture consortium directly.
• Foliar feeding programs: the product is designed for foliar application, making it suitable for growers who already run a foliar spray schedule and want to add a biology-focused component.
• Vegetative and flowering stages: because the product supports ongoing carbon conversion rather than delivering a single biological event, it is relevant throughout the grow cycle, not just at transplant.
• Recovering or stressed plants: situations where plant vigor is reduced — from transplant shock, environmental stress, or media that is slow to establish — are cases where rapid establishment of plant-supporting biology can be useful.
• High-output commercial grows: in environments where time-to-market matters, supporting efficient photosynthetic function throughout the canopy contributes to consistent development across large plant numbers.

Microbe Life Photosynthesis Plus vs Similar Microbial Supplements

Microbial supplements in the Growth & Bloom Boosters category vary significantly in their mechanism of action, viable organism count, and intended application point. Understanding how Photosynthesis Plus differs from other products in this space helps growers decide where it fits in an existing program.

Many microbial inoculants on the market — including mycorrhizal products and beneficial bacteria blends — are designed primarily for root-zone colonization at transplant. They introduce populations of fungi or bacteria that form long-term symbiotic relationships with root tissue. Photosynthesis Plus operates on a different premise: rather than forming a root symbiosis, it delivers a culture consortium that supports the photosynthetic machinery of the plant itself, both through the roots and through foliar uptake.

Products like Earth Juice Hi-Brix Molasses serve a related but distinct function — providing a carbon source that feeds existing soil microbes. Photosynthesis Plus introduces the microorganisms themselves rather than feeding populations already present, which makes it more relevant in sterile or low-biology environments where there are few native microbes to feed.

For growers already running a root-zone microbial program, Photosynthesis Plus adds a complementary foliar biology component rather than duplicating what root inoculants do. For growers in sterile hydroponic environments with no microbial baseline, it provides a starting point for establishing biology that inert media cannot supply on its own.

Compatibility

Photosynthesis Plus is described by the manufacturer as capable of establishing biology in media that is entirely void of organisms. This means it is not dependent on existing microbial populations to function, and it is designed to work in the growing environments where most liquid biological supplements are least effective.

Compatible growing environments and media based on the manufacturer description:

• Hydroponic systems (deep water culture, NFT, ebb and flow, recirculating drip)
• Aeroponic systems
• Coco coir and coco/perlite blends
• Rockwool and other mineral-based inert media
• Soil and amended soil mixes (where added biology complements existing populations)
• Foliar spray programs as a standalone application or alongside other foliar inputs

Because Photosynthesis Plus uses living microorganisms, it should not be mixed directly with products that have antimicrobial properties (such as hydrogen peroxide solutions) or applied immediately after media sterilization with strong oxidizers. Allow any sterilizing treatment to dissipate before introducing the product. Standard nutrient solution compatibility data is not published by the manufacturer; start with a small test batch when adding to an existing reservoir program.

Usage Guidelines

Photosynthesis Plus is a liquid concentrate intended for both foliar application and root-zone drenching. The manufacturer does not publish a specific dose rate in the available product description; the following guidance reflects standard practice for liquid microbial supplements in this category. Confirm exact dosing on the product label before use.

1. Shake the container thoroughly before each use. Living microbial cultures can settle during storage and must be evenly suspended before measuring.
2. Measure the recommended dose per gallon of water using a calibrated syringe or measuring cup. Do not estimate by eye with concentrated biological products.
3. Add to pH-adjusted water. Mix into water that has been adjusted to the appropriate pH range for your growing medium (typically 5.8–6.2 for hydroponics, 6.0–6.8 for soil and coco) before combining with other nutrients.
4. For root-zone application: apply the diluted solution directly to the root zone as a drench or add to the reservoir. Use during regular watering intervals throughout the vegetative and flowering stages.
5. For foliar application: apply the diluted solution to both the upper and lower leaf surfaces during lights-off or in low-light conditions to reduce evaporation and minimize leaf stress. Avoid spraying during peak heat hours.
6. Monitor plant response over the first two to three applications. Adjust the frequency based on plant vigor and overall program performance.

Store the container in a cool, dark location between uses. Avoid exposing the product to direct sunlight or temperature extremes, which can reduce viability of the microbial culture.

Sources & Further Reading