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Nualgi Natural Pond Cleaner

Regular price $37.58
Sale price $46.98
Size: 60 ml
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Nualgi Natural Pond Cleaner
Regular price $37.58
Sale price $46.98

Nualgi Ponds is a highly concentrated, nano-silica-based liquid additive that promotes the growth of diatom algae—beneficial, invisible algae that outcompete nuisance green and blue-green algae for nutrients. By fostering diatom growth, Nualgi improves water clarity, reduces odors, and increases dissolved oxygen. It also supports the pond's natural food chain by boosting zooplankton populations, which serve as food for fish and other aquatic life.

Why Choose Nualgi Ponds?

  • Natural Algae Control: Encourages diatoms to outcompete nuisance algae like blue-green and green algae.
  • Boosts Water Quality: Improves oxygen levels and clarity, and eliminates foul odors—often within hours.
  • Feeds the Food Chain: Diatoms feed zooplankton, which in turn provide live nutrition for fish and shrimp.
  • Safe & Sustainable: Contains no chemicals or harsh algaecides; safe for all aquatic life.
  • No Mess, Easy Application: Dose weekly—just dilute and pour into the pond.

Important Usage Notes

  • Do Not Use With: UV clarifiers, ionizers, or algaecides—these kill diatom algae and render Nualgi ineffective.
  • Compatible With: Beneficial bacteria such as Microbe-Lift PL for enhanced results.

Technical Specifications

  • Active Ingredients: 12 essential nutrients on a nano-silica base
  • Dosage: 1 ml per 1,000 gallons weekly, diluted in 100 ml of water
  • Effective Water Temperature: Use above 50°F (10°C)
  • Available Sizes:
    • 60 ml – Treats 60,000 gallons
    • 125 ml – Treats 125,000 gallons
    • 250 ml – Treats 250,000 gallons
    • 500 ml – Treats 500,000 gallons
    • 1 L – Treats 2,000,000 gallons
  • Safe For: All fish, aquatic plants, pets, and wildlife

How It Works

When dosed, Nualgi delivers nutrients to diatoms, encouraging their growth. Diatoms absorb excess nitrogen and phosphorus, starving nuisance algae. They photosynthesize early, increasing dissolved oxygen and enabling aerobic bacteria to break down waste. As diatoms grow, so does zooplankton, which feeds your fish—completing the food chain.

Dosing Instructions

  • Standard dose:1 ml per 1,000 gallons weekly
  • Spring/Fall:
    • 5°C - 10°C: once a month
    • 10°C - 15°C: once every two weeks
    • 15°C+: once per week
  • Dose in the morning for best results
  • Remove leaves and visible algae before dosing
  • Dilute 10:1 with pond water and pour around the perimeter

Frequently Asked Questions

When will I see results?
In severe cases, results may be visible within hours. Temporary cloudiness is possible. If no improvement after one week, contact us.

Is it safe for koi and other pond fish?
Yes, Nualgi is 100% safe for koi, goldfish, trout, amphibians, snails, and invertebrates.

Can I use it with other products?
Yes, Nualgi is compatible with beneficial bacteria but should not be used alongside UV clarifiers, ionizers, or algaecides.

Why did my water turn brown?
Likely causes: diatom overgrowth from overdosing, or dying algae combined with poor filtration. Test with a clear glass—if debris settles, filtration is the issue; if not, reduce the dose.

Can Nualgi help with string algae?
Yes, when used with beneficial bacteria. Full results can take up to 16 weeks.

Can chlorine affect Nualgi’s effectiveness?
Yes. High chlorine or chloramine impedes nitrification. Use a quality dechlorinator (e.g., Novaqua) after heavy rains or when refilling.

Can I use Nualgi around children or pets?
Yes, Nualgi is non-toxic and safe for humans, pets, and wildlife. If accidentally ingested, consult a physician. If it gets in the eyes, rinse with clean water.

Will diatoms outcompete my pond plants?
At recommended dosing (1 ml/1,000 gallons), diatoms mainly suppress nuisance algae. If you notice slowed plant growth, reduce dosage slightly.

Why is there foam on my pond after dosing?
Foam is caused by dying algae. Skim it manually and keep your filter clean and flowing properly to prevent buildup.

Shipping Information

We aim to get your pond and water garden supplies to you as quickly as possible.

  • Orders over $199 CAD ship free across Canada (excluding oversized items).
  • A flat rate of $14.99 applies to all smaller orders.
  • Standard delivery takes 1 to 4 business days.
  • Most in-stock items are dispatched within 24 hours.
  • Special order items may require 2 to 14 business days before shipping, depending on availability.
Returns & Exchanges

If something isn’t quite right, we’ve got you covered.

  • Returns are accepted within 30 days of delivery.
  • Items must be unused, in original packaging, and include all parts and proof of purchase.
  • Items marked as Clearance are final sale and cannot be returned or exchanged.

For full details, please review our Shipping Policy and Refund Policy.

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