Microbe-Lift PL – 1 Gallon (Beneficial Bacteria for Ponds)

Microbe-Lift PL (SKU 22345) is the original, industry-leading beneficial bacteria formula from Ecological Laboratories — the only pond clarifier that contains photosynthetic bacteria alongside heterotrophic bacteria to achieve comprehensive water clarification. These unique photosynthetic strains use sunlight as an energy source to drive flocculation — clumping suspended particles so they settle out of the water column — while heterotrophic bacteria break down ammonia, nitrite, organic sludge, and hydrogen sulfide at the pond bottom. The 1-gallon size treats a 5,000-gallon pond for approximately 21 months of continuous maintenance use. Microbe-Lift PL provides continued biological activity in water temperatures under 55°F (12°C) — making it effective through the shoulder seasons of spring and fall. For near-freezing winter conditions, transition to Microbe-Lift Autumn/Winter Prep (SKU 56263, psychrophilic strains active under 40°F). Safe for koi, goldfish, all aquatic plants, wildlife, and pets. 22345 1 Gallon / 128 oz Photosynthetic Bacteria Active under 55°F Treats 5,000 gal / 21 mo Fish & Plant Safe Non-Toxic 💨 About the smell: Microbe-Lift PL smells strongly of sulfur when first opened. This is completely normal and actually a sign of product quality — hydrogen sulfide acts as a natural preservative that keeps the live bacteria dormant during storage. When you pour PL into pond water, the hydrogen sulfide flashes off and disperses within minutes, allowing the bacteria to activate. The stronger the smell, the more live bacteria you have. Key Features & Benefits ☀️ Unique Photosynthetic Bacteria Microbe-Lift PL is the only pond clarifier to include photosynthetic bacteria alongside standard heterotrophic strains. These photosynthetic microorganisms use sunlight to power flocculation — clumping tiny suspended particles (organic and inorganic) into larger masses that settle to the pond floor, dramatically improving water clarity even in ponds with active fish populations. 🧪 Complete Nitrogen Cycle Support PL seeds and maintains biological filters with nitrifying bacteria (converting ammonia → nitrite → nitrate) while also providing denitrifying bacteria that remove nitrate from the pond entirely — reducing the nutrient load that fuels algae blooms. The result is lower ammonia, lower nitrate, and cleaner water that supports fish health and vivid plant growth. 💨 Eliminates Hydrogen Sulfide Odors The foul “rotten egg” smell from pond sludge layers is hydrogen sulfide gas. PL contains sulfur-metabolizing bacteria that biologically neutralize this compound at the source — the organic sediment layer on the pond floor. As sludge is digested, H₂S production stops and pond odors disappear. 🌡️ Active Under 55°F Unlike many spring/summer bacterial products that go dormant as temperatures drop, Microbe-Lift PL maintains continued biological activity in water temperatures under 55°F (12°C) — extending effective use into fall and early spring shoulder seasons. For near-freezing winter conditions, transition to Microbe-Lift Autumn/Winter Prep (psychrophilic strains). 🐟 Promotes Fish Health & Growth Lower ammonia and nitrite levels directly improve fish health and immune function. Microbe-Lift PL also supports faster fish growth by improving dissolved oxygen levels (competing aerobic bacteria reduce oxygen-depleting organic load) and maintaining the clean water chemistry that koi and goldfish require for optimal coloration and vitality. 💧 Wide pH Range Effectiveness Effective over a wide range of pH conditions — unlike some bacterial products that perform optimally only in a narrow pH window, Microbe-Lift PL bacteria remain effective at both high and low alkalinity. This makes it suitable for ponds with limestone rockwork (higher pH) and ponds with heavy plant coverage (variable pH). Technical Specifications Specification Value SKU 22345 Size 1 Gallon (128 oz) Product Type Beneficial bacteria — photosynthetic + heterotrophic strains Coverage Treats a 5,000-gallon pond for approximately 21 months (Microbe-Lift official) Active Temperature Range Continued biological activity in water temperatures under 55°F (12°C) Fish Safety 100% safe — koi, goldfish, all aquatic life, plants, wildlife, pets Water Types Freshwater ponds, water gardens, lagoons Storage Room temperature; do not freeze Application Add directly to pond near waterfall or pump intake; shake well before use Dosing Guide Pond Size Initial Purge Dose Weeks 2–5 Monthly Maintenance Up to 500 gal 8 oz 2 oz/week 2 oz/month 501–1,000 gal 12 oz 4 oz/week 4 oz/month 1,001–5,000 gal 16 oz 6 oz/week 6 oz/month 5,001+ gal 8 oz per 2,500 gal 4 oz/2,500 gal/week Scale monthly Dosing rates from Microbe-Lift official label. Apply near a waterfall, pump intake, or area of active water circulation for best distribution. Aeration significantly enhances bacterial performance — run an air pump continuously if possible. Frequently Asked Questions What makes Microbe-Lift PL different from other pond bacteria? Microbe-Lift PL is formulated with photosynthetic bacteria — a strain not found in most competing pond bacteria products. Standard pond bacteria are primarily heterotrophic (they break down organic matter in the sediment and water column). Photosynthetic bacteria additionally use sunlight as an energy source to actively drive flocculation — causing tiny suspended particles to clump together and settle out of the water column, which mechanically clarifies the water in addition to the biological clarification from ammonia/nitrite reduction. The combination of photosynthetic + heterotrophic + nitrifying + denitrifying bacteria in a single formula makes PL a complete ecosystem product, not just a filter seed or ammonia treatment. How does Microbe-Lift PL remove 'rotten egg' odors from my pond? The rotten egg smell in ponds comes from hydrogen sulfide (H₂S) produced by the anaerobic decomposition of organic matter in the sludge layer at the pond bottom. Microbe-Lift PL contains sulfur-metabolizing bacteria that convert H₂S into sulfate — a harmless, odorless compound — as part of the sulfur cycle. As these bacteria colonize the sludge layer and the organic load decreases, H₂S production drops and pond odors disappear. This process typically takes 2–4 weeks of regular treatment to show noticeable improvement. What is the dosage for a 1-Gallon bottle of Microbe-Lift PL? Dosing varies by pond size. For a 1,001–5,000 gallon pond: Week 1 (purge dose): 16 oz added near waterfall or pump intake Weeks 2–5: 6 oz per week Monthly maintenance: 6 oz per month ongoing For ponds 501–1,000 gallons: 12 oz initial; 4 oz weekly for 4 weeks; 4 oz monthly. For very large ponds (5,001+ gallons): scale at 8 oz per 2,500 gallons for the initial purge. See the dosing table above for the full chart. A 1-gallon bottle treats a 5,000-gallon pond for approximately 21 months of ongoing maintenance. Is Microbe-Lift PL safe for koi, turtles, and aquatic plants? Yes — Microbe-Lift PL is 100% non-toxic, non-pathogenic, and non-caustic. It is completely safe for koi, goldfish, turtles, aquatic plants, amphibians, and any wildlife or pets that drink from the pond. There is no need to remove fish or plants before or during treatment. The bacteria are naturally occurring microorganisms, not synthetic chemicals. Why does Microbe-Lift PL have a strong smell when I open the bottle? The strong sulfur smell is a sign that the photosynthetic and heterotrophic bacteria are alive and concentrated. Hydrogen sulfide acts as a natural preservative that keeps the live bacteria in a dormant, stable state during storage — this is how Microbe-Lift achieves the longest shelf life of any live bacteria product on the market. When you pour PL into pond water, the hydrogen sulfide flashes off and dilutes rapidly, allowing the bacteria to “wake up” and activate within minutes. The stronger the smell, the more concentrated the live culture. Once in the pond, the odor dissipates completely — it does not affect pond water odor after application. Can Microbe-Lift PL be used in cold water during the winter? Microbe-Lift PL maintains continued biological activity in water temperatures under 55°F (12°C) — it doesn’t shut off the moment temperatures drop below typical summer ranges. However, as water approaches near-freezing temperatures, PL’s mesophilic bacteria become less effective. For late fall and winter maintenance in climates where pond water approaches freezing, transition to Microbe-Lift Autumn/Winter Prep (SKU 56263), which contains psychrophilic (cold-loving) bacterial strains that remain active under 40°F (4°C) and continue working under ice and snow. Why Buy from Pond Pro Direct? Authentic Microbe-Lift products — guaranteed fresh live bacteria Expert dosing and pond treatment guidance — call or text (765) 508-4352, Mon–Fri 9am–5pm EST Free shipping on all orders Price match guarantee on identical products 30-day return period on eligible items