Seachem Prime -500 ml/ 17 fl. oz.

Concentrated Aquarium Water Conditioner for Freshwater and Saltwater Tanks, 50 ml to 20 L – Seachem Prime

500 mL / Conditioner
$46.62
Sale price  $46.62 Regular price 
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Seachem Prime -500 ml/ 17 fl. oz.

Concentrated Aquarium Water Conditioner for Freshwater and Saltwater Tanks, 50 ml to 20 L – Seachem Prime

$46.62
Sale price  $46.62 Regular price 
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Concentrated aquarium water conditioner prepares new or replacement freshwater and saltwater by removing chlorine and chloramine. Seachem Prime also detoxifies ammonia, nitrite, and heavy metals at typical tap-water concentrations, allowing a working biofilter time to process nitrogen compounds. The liquid formula is available from small 50-milliliter bottles to a 20-liter container, giving aquarists a practical choice for home tanks, multi-tank rooms, or larger systems.

For routine treatment, use one capful or 5 milliliters for each 200 liters or 50 US gallons of new or replacement water; for smaller volumes, the source gives two drops per gallon. Add it to new water first when possible and measure carefully. Emergency or high-chloramine dosing depends on water conditions, so follow the exact label rather than increasing concentration casually. The source specifically directs a half dose above 86°F when chlorine or ammonia levels are low. Test water and avoid combining treatments without compatibility guidance.

Specifications

  • Brand: Seachem
  • Product: Concentrated aquarium water conditioner
  • Form: Liquid
  • Water types: Freshwater and saltwater
  • Primary actions: Removes chlorine and chloramine; detoxifies ammonia, nitrite, and heavy metals at typical concentrations
  • Routine dose: 5 ml per 200 liters or 50 US gallons of new or replacement water
  • Small-volume dose: 2 drops per gallon
  • Sizes: 50, 100, 250, 500, 1000, 2000, 3785, or 20000 milliliters
  • Additional variant: 2000 ml Classic
  • Detoxification window stated: Up to 48 hours for ammonia, nitrite, and nitrate handling by the biofilter
  • High-temperature note: Use half dose above 86°F when chlorine or ammonia levels are low
  • Detailed model: 67104330
  • Use: New or replacement aquarium water treatment

Frequently Asked Questions

How much Seachem Prime should I use for routine water changes?

Use 5 milliliters per 200 liters or 50 US gallons of new or replacement water. For smaller volumes, the source states two drops per gallon.

Does Prime work in both freshwater and saltwater tanks?

Yes. Seachem Prime is a concentrated conditioner for freshwater and marine aquarium water.

Which container sizes are available?

Choose 50, 100, 250, 500, 1000, 2000, 3785, or 20000 milliliters, plus a listed 2000 ml Classic variant.

Can I use a larger dose during an emergency?

The label permits specific higher dosing in defined situations, but concentration and temperature matter. Follow the current package directions and test water before changing the dose.

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