UltraClear Biological Pond Clarifier – 32 oz | Natural Sludge & Algae Treatment

UltraClear Biological Pond Clarifier – 32 oz (SKU 041000, MPN 41000) is a liquid beneficial bacteria treatment that improves pond water clarity by completing the nitrogen cycle — converting toxic ammonia and nitrite into harmless nitrogen gas and consuming the phosphate that fuels algae growth. Unlike chemical flocculants that only temporarily clump particles, the biological bacteria in UltraClear Clarifier provide long-term water quality improvement by addressing the root nutrient causes of cloudy, algae-prone water. One 32 oz bottle treats 80,000 gallons at the standard dose of 1 oz per 2,500 gallons. For ponds also dealing with bottom sludge and heavy organic accumulation (leaves, fish waste, muck), pair with UltraClear Sludge Digester — the two products work on complementary aspects of pond health and can be used together as a complete biological management system. SKU 041000 / MPN 41000 32 oz 1 oz per 2,500 gal 80,000 gal per bottle Nitrogen Cycle Bacteria Made in USA 30+ Years Trusted ⚠ UV Clarifier: Turn off your UV clarifier for 24–48 hours after each UltraClear treatment. UV light kills the beneficial bacteria before they can colonize filter surfaces and pond substrate. Avoid using chemical algaecides (copper-based, peroxide-based) simultaneously — they reduce bacterial activity and reduce treatment efficacy. How UltraClear Biological Clarifier Works — The Nitrogen Cycle 🔬 Class 1: Nitrifying (Chemolithotrophic) Bacteria These bacteria require an aerobic (oxygenated) zone and oxidize toxic ammonia (NH₃) to nitrite (NO₂), then to relatively harmless nitrate (NO₃). They also consume large amounts of phosphate — the key nutrient that fuels algae blooms. By removing phosphate from the water column, these bacteria starve algae of the nutrient it needs to proliferate. This is the primary long-term algae-reduction mechanism. 🦠 Class 2: Heterotrophic (Facultative) Bacteria These bacteria function in both aerobic (surface water) and anaerobic (low-oxygen bottom) zones — meaning they work right at the pond bottom where sludge accumulates. They digest organic sediment and dissolved organic carbon, and convert nitrate (NO₃) to completely harmless nitrogen gas (N₂) that releases to the atmosphere. This denitrification step completes the nitrogen cycle and prevents nitrate buildup. Result: NH₃ (toxic ammonia) → NO₂ (nitrite) → NO₃ (nitrate) → N₂ (nitrogen gas, harmless). Phosphate consumed throughout. Organic sediment digested. Water becomes clearer as excess nutrients are permanently removed rather than temporarily masked. Dosing Schedule Spring Start-Up / Filter Seeding Per dosing chart — 3 consecutive daily doses Then revert to weekly maintenance dose. Rapidly establishes bacteria colony in new or winterized filter. General Maintenance 1 oz per 2,500 gallons Once per week (or as needed). 50°F+ water temperature for best results. Problem Ponds Per dosing chart — 2–3× per week Until clarity improves. Then revert to weekly maintenance. Results in 7–14 days of consistent use. Application: Dilute measured dose with 2–3 gallons of pond water, then pour evenly along the pond perimeter for good distribution. Shake bottle well before measuring. Key Features & Benefits 🌿 Reduces Algae by Nutrient Starvation Algae blooms require nitrogen (ammonia, nitrite, nitrate) and phosphate. UltraClear Biological Clarifier bacteria consume these nutrients before algae can use them, reducing the conditions that promote algae growth without using algaecide chemicals. This is a sustainable, long-term approach — rather than killing algae after it appears, the bacteria prevent the nutrient conditions that allow it to grow in the first place. 🐟 Reduces Toxic Ammonia & Nitrite New and under-established ponds are vulnerable to ammonia and nitrite toxicity — even low concentrations (above 0.5 ppm ammonia, 0.1 ppm nitrite) can kill fish. UltraClear Biological Clarifier's nitrifying bacteria rapidly establish the ammonia→nitrate conversion cycle, making the pond safe. It is specifically recommended for spring startup, new pond establishment, and any time significant numbers of fish are added to the system. 💧 Seeds Biological Filtration New biological filters (bead filters, Nexus filters, Moving Bed filters, Bakki showers) require a period of weeks to develop a stable nitrifying bacteria colony — the "cycling" process. Dosing with UltraClear Biological Clarifier significantly accelerates this cycle by introducing concentrated viable bacteria directly. Use the Spring Prep protocol (3 consecutive daily doses) whenever starting a new filter, replacing filter media, or restarting a pond after winter. 🔬 Liquid Formula — High Viability UltraClear provides living bacteria in a liquid suspension rather than freeze-dried powder form. Virtually 100% of bacteria in the liquid formulation remain viable and active for one full year after purchase (when stored at 40–80°F, not frozen, not above 100°F). Freeze-dried bacteria products have lower viability rates at time of use — the liquid form ensures the bacteria you add to the pond are actually alive and ready to colonize. 🌱 Pair With Sludge Digester For complete biological pond management, UltraClear recommends using Biological Clarifier alongside Sludge Digester (SKU 47125) when heavy organic material (leaves, grass clippings, heavy fish waste) is present. Biological Clarifier handles the nitrogen cycle and dissolved nutrient management; Sludge Digester handles the bottom sludge accumulation. Together they provide comprehensive biological coverage from the water column to the pond bottom. 🇺🇸 American Owned, American Made UltraClear has been manufacturing professional-grade pond biological treatments in the USA since 1993 — 30+ years of proven pond care expertise. The liquid bacteria formulation is manufactured under strict quality controls to ensure viable, active bacteria in every bottle through the full shelf life. UltraClear Biological Clarifier vs. Sludge Digester — Which Do You Need? Feature Biological Clarifier (This — SKU 041000) Sludge Digester (SKU 47125) Primary target Dissolved nitrogen compounds, phosphate, suspended nutrients Bottom sludge, muck, organic sediment Bacteria types Nitrifying (chemolithotrophic) + heterotrophic Heterotrophic + enzymatic, including facultative anaerobes Works in Water column + filter media Bottom of pond (aerobic and anaerobic zones) Reduces Ammonia, nitrite, nitrate, phosphate, algae-fueling nutrients Sludge, muck, leaf litter, fish waste deposits Dose 1 oz / 2,500 gal — weekly 1 oz / 1,000 gal — monthly to weekly Best for New ponds, algae prevention, cloudy water, filter seeding Established ponds with heavy bottom accumulation Use together? ✅ YES — UltraClear recommends both for ponds with heavy organic loads Technical Specifications Specification Value SKU / MPN 041000 / 41000 Size 32 oz Form Liquid (viable bacteria suspension) Active Components Two classes: nitrifying (chemolithotrophic) + heterotrophic facultative bacteria Standard Dose 1 oz per 2,500 gallons — weekly Coverage (32 oz) 80,000 gallons at standard dose Spring Prep Per dosing chart — 3 consecutive daily doses, then revert to weekly Problem Ponds 2–3× per week until resolved, then revert to weekly Min Temp (best results) 50°F+ (bacteria remain active but slow below 50°F) UV Clarifier Turn off for 24–48 hours after treatment Chemical Algaecides Avoid simultaneously — reduces bacterial effectiveness Application Dilute with 2–3 gal pond water; pour along pond perimeter Storage 40–80°F; do not freeze; do not store above 100°F; viable 1 year after purchase Made In USA UltraClear Biological Pond Clarifier Size Family Size MPN Coverage Best For 12 oz — ~30,000 gal Small ponds; trial 32 oz ← This 41000 80,000 gal Medium-large ponds; standard maintenance; best value 1 Gallon 41150 ~320,000 gal Large ponds; commercial; seasonal program Frequently Asked Questions How long does it take to show results? Most pond owners notice initial improvement within 48–72 hours. However, because UltraClear uses live beneficial bacteria that need time to establish colonies and process the nitrogen cycle, full results take 7–14 days of consistent weekly treatment. A heavily clouded or nutrient-loaded pond may take 2–4 weeks of consistent dosing to reach crystal-clear status. For the fastest results: use the Problem Pond protocol (2–3× per week) and ensure the UV clarifier is off for 24–48 hours after each application so the bacteria can colonize filter surfaces without being killed by UV light. Is UltraClear Biological Clarifier safe for koi, goldfish, and plants? Yes — 100%. UltraClear Biological Clarifier contains only natural, non-pathogenic soil bacteria. It contains no harsh chemicals, copper, or biocides. Safe for koi, all pond fish, aquatic plants (the improved water quality actually promotes healthier aquatic plant growth), frogs, birds, dogs, cats, and other wildlife. Will not harm turf if treated pond water is used for irrigation. Can I use UltraClear in cold water during winter or spring startup? Bacteria remain active at temperatures below 50°F but slow significantly — metabolic rate decreases as water cools. For best results, dose weekly when water is above 50°F. Spring startup is an ideal time to use UltraClear: apply the Spring Prep protocol (3 consecutive daily doses per the dosing chart) at the beginning of the season to rapidly establish bacteria in your biological filter before fish become fully active and ammonia production increases. How much UltraClear do I need for my pond? The standard dose is 1 oz per 2,500 gallons weekly. The 32 oz bottle treats 80,000 gallons total. For a 2,500-gallon koi pond at weekly dosing, one bottle provides 32 weeks of treatment — most of a full active season. To calculate pond volume: length (ft) × width (ft) × depth (ft) × 7.5 = gallons. For the initial Spring Prep dose, follow the dosing chart on the label for 3 consecutive days, then reduce to the weekly maintenance dose. Does this treatment help remove muck from the pond bottom? Partially. UltraClear Biological Clarifier's heterotrophic bacteria work in both aerobic and anaerobic zones and digest some organic sediment. However, for ponds with significant bottom sludge accumulation (leaves, heavy fish waste deposits), UltraClear recommends using Sludge Digester (SKU 47125) alongside the Biological Clarifier. The Sludge Digester is specifically formulated at higher concentrations for bottom sludge, while the Biological Clarifier focuses on the water column nitrogen cycle and dissolved nutrients. Will UltraClear work if I have a UV clarifier or mechanical filter running? Mechanical filtration — yes, keep it running. UV clarifier — turn it off for 24–48 hours after each UltraClear treatment. UV light kills bacteria, including the beneficial bacteria in UltraClear, before they can colonize filter media and pond surfaces. After 24–48 hours, the bacteria have established colonies and can be protected from UV by the biofilm layer they form. Resume UV operation normally after the 48-hour window. Also avoid using copper-based or peroxide-based chemical algaecides simultaneously — they reduce bacterial activity and counteract the biological treatment. If you need to use an algaecide, apply it, then wait until it clears before starting UltraClear treatment. Why Buy from Pond Pro Direct? Authentic UltraClear products — American-made, 30+ years trusted Expert pond water quality 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