Description
The Clinical Solution for External Parasites. When your water quality tests perfect but your koi are still flashing, isolating, or gasping, external parasites are the likely culprit. You need a treatment that is targeted, effective, and safe for your biological ecosystem.
KoiGuard Broad Spectrum Disease Treatment (BSDT) is the professional choice for eliminating protozoan parasites. Formulated with a synergistic blend of Malachite Green Chloride and Formalin, it targets the specific life cycles of microscopic pests while protecting the biological balance of your pond.
Primary Indications (What it Treats):
- Ich (White Spot): Ichthyophthirius multifiliis
- Costia: Ichthyobodo necator
- Trichodina
- Chilodonella
- Fungal Infections (Saprolegnia)
Why KoiGuard is the "Gold Standard":
- Bio-Filter Safe Formulation: Unlike harsh alternatives that can crash your nitrogen cycle, KoiGuard is formulated to be safe for beneficial nitrifying bacteria when dosed as directed.
- Plant Safe: Safe for use in ponds with water lilies, lotus, and other aquatic plants.
- Cool Water Efficacy: Parasites don't stop when the temperature drops. KoiGuard remains effective down to 50°F (10°C), making it essential for treating Spring and Fall outbreaks.
- Safer Active Ingredients: We utilize Malachite Green Chloride, a refined compound that is far less toxic to Koi and Goldfish than the oxalate forms found in generic treatments.
Clinical Transparency
We believe in giving you the full picture so you can treat with confidence.
- ⚠️ Invertebrate Contraindication: This is a potent anti-parasitic. It is NOT safe for snails, shrimp, crayfish, or other invertebrates. These must be removed from the pond prior to treatment.
- ⚠️ Salt Contraindication: Do not use this product in water containing salt concentrations above 0.1%. If you have recently salted your pond, perform water changes to reduce salinity before beginning the KoiGuard regimen.
- ⚠️ Staining: This formula contains Malachite Green. It will stain hands, clothing, and porous concrete. Protective gloves are recommended during handling.
Download KoiGuard Broad Spectrum SDS Sheet (PDF)
Treatment Protocol
Standard Regimen: 3 Daily Treatments Dosage: 3.5 fl. oz. treats 1,000 gallons (approx. 100mL per 1,000 gal).
- Preparation: Perform a 25% water change. Turn off UV sterilizers and remove activated carbon.
- Day 1: Apply standard dose.
- Day 2: Apply standard dose.
- Day 3: Apply standard dose.
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Pro Tip: For complete coverage (including Flukes), many experts combine KoiGuard Broad Spectrum with KoiGuard Prazi
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After the final treatment is complete (Day 4), perform a 25% water change and turn UV lights back on.
Calculated for a standard 3-Dose Cycle (One dose daily for 3 days).
| Pond Volume | Single Dose Amount | Total Required (3 Days) | Recommended Size |
|---|---|---|---|
| 500 gal | 1.75 oz (52 mL) | 5.25 oz (156 mL) | (1) 32oz Bottle |
| 1,000 gal | 3.5 oz (104 mL) | 10.5 oz (312 mL) | (1) 32oz Bottle |
| 2,500 gal | 8.75 oz (260 mL) | 26.25 oz (780 mL) | (1) 32oz Bottle |
| 5,000 gal | 17.5 oz (520 mL) | 52.5 oz (1,560 mL) | (1) Gallon Jug |
| 10,000 gal | 35.0 oz (1,040 mL) | 105 oz (3,120 mL) | (1) Gallon Jug |
Pro Tip: Running out of treatment on Day 2 allows parasites to recover and develop resistance. Always buy enough for the full 3-day cycle.
Our Guarantee
Made in the USA | Lab Tested | Hobbyist Approved We don't just sell bottles; we protect ponds. If you are unsure about your diagnosis, contact our support team before treating. We are here to help you save your fish.
Payment & Security
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