Use 1 capful (5 mL) for each 200 L (50 US gallons) of new water. For smaller volumes, please note each cap thread is approximately 1 mL. May be added to aquarium directly, but better if added to new water first. If adding directly to aquarium, base dose on aquarium volume. Sulfur odor is normal. For exceptionally high chloramine concentrations, a double dose may be used safely. To detoxify nitrite in an emergency, up to 5 times normal dose may be used. If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low, use a half dose.
Prime® Dosing Tables
Standard Dose
Use this table when doing a water change or detoxifying low levels of ammonia (around 1 ppm)
| Water Volume | 1 qt / 1 L | 1 gal / 4 L | 10 gal / 40 L | 50 gal / 200 L |
| Prime® Dose (mL) | 0.025 mL | 0.1 mL | 1 mL | 5 mL |
| Prime® Dose (caps) | 1/200 capful | 1/50 capful | 1/5 capful | 1 capful |
| Prime® Dose (drops) | 0.5 drops | 2 drops | 20 drops | 100 drops |
Double Dose
Use this table only when there are elevated levels of ammonia (around 2 ppm), nitrite, chlorine, or chloramine
| Water Volume | 1 qt / 1 L | 1 gal / 4 L | 10 gal / 40 L | 50 gal / 200 L |
| Prime® Dose (mL) | 0.05 mL | 0.2 mL | 2 mL | 10 mL |
| Prime® Dose (caps) | 1/100 capful | 1/25 capful | 2/5 capful | 2 capfuls |
| Prime® Dose (drops) | 1 drops | 4 drops | 40 drops | 200 drops |
Triple Dose
Use this table only when there are very elevated levels of ammonia (around 3 ppm) or nitrite
It is unheard of to have chlorine or chloramine concentrations at this level in tap water
| Water Volume | 1 qt / 1 L | 1 gal / 4 L | 10 gal / 40 L | 50 gal / 200 L |
| Prime® Dose (mL) | 0.075 mL | 0.3 mL | 3 mL | 15 mL |
| Prime® Dose (caps) | 3/200 capful | 3/50 capful | 3/5 capful | 3 capfuls |
| Prime® Dose (drops) | 1.5 drops | 6 drops | 60 drops | 300 drops |
Quadruple Dose
Use this table only when there are extremely elevated levels of ammonia (around 4 ppm) or nitrite
It is unheard of to have chlorine or chloramine concentrations at this level in tap water
| Water Volume | 1 qt / 1 L | 1 gal / 4 L | 10 gal / 40 L | 50 gal / 200 L |
| Prime® Dose (mL) | 0.1 mL | 0.4 mL | 4 mL | 20 mL |
| Prime® Dose (caps) | 1/50 capful | 2/25 capful | 4/5 capful | 4 capfuls |
| Prime® Dose (drops) | 2 drops | 8 drops | 80 drops | 400 drops |
MAXIMUM DOSE
Use this table only when there are extremely elevated levels of ammonia (around 5 ppm) or nitrite
It is unheard of to have chlorine or chloramine concentrations at this level in tap water
| Water Volume | 1 qt / 1 L | 1 gal / 4 L | 10 gal / 40 L | 50 gal / 200 L |
| Prime® Dose (mL) | 0.125 mL | 0.5 mL | 5 mL | 25 mL |
| Prime® Dose (caps) | 1/25 capful | 4/25 capful | 1 capful | 5 capfuls |
| Prime® Dose (drops) | 2.5 drops | 10 drops | 100 drops | 500 drops |
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