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Deal.ai › Seachem › Fish Aquarium Cleaners
Seachem
Seachem 4 Pack Prime 500ml

Seachem 4 Pack Prime 500ml

Best price now

$75.01at WalmartChecked Nov 12

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Price facts

  • Last seen at $75.01 at Walmart on Nov 12.

Our take on the Seachem 4 Pack Prime 500ml

Prime is Seachem's flagship water conditioner for fresh and saltwater tanks. It removes chlorine and chloramine, and it binds ammonia, nitrite and nitrate into non-toxic forms the biofilter can still process. It is one of the most concentrated conditioners sold, so a small dose treats a large volume of tap water. It suits keepers who cycle tanks, do frequent water changes, or treat municipal water with chloramines.

Best forNew tank cycling and ammonia spikesWeekly water changes in fresh or saltwater tanksKeepers on chloramine-treated tap waterReef and skimmer-equipped setups
Pros
  • Removes chlorine and chloramine
  • Detoxifies ammonia, nitrite and nitrate
  • Highly concentrated, so bottles last
  • Non-acidic and does not shift pH
  • Safe with protein skimmers
  • Promotes slime coat regeneration
Cons
  • Strong sulfur smell right after dosing
  • Dosing is easy to get wrong on small tanks
  • Detoxification is temporary, not removal
  • Does not replace water changes or a cycled filter

Seachem 4 Pack Prime 500ml prices at every store

  • WalmartNew

    In stockSold by Kwik RetailReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $75.01Free shippingChecked Nov 12
    Visit Walmart

What reviewers say

Owners treat Prime as a staple for cycling and emergency ammonia control. Many praise how far a bottle goes and how fast it handles chloramines. The most common complaint is the sulfur odor, and some note the ammonia binding only lasts about a day.

What people mention
  • SmellCriticisedOwners describe a sulfur or rotten-egg odor right after dosing that fades.
  • ConcentrationPraisedUsers say a little goes a long way and bottles last through many water changes.
  • Ammonia bindingMixedKeepers value it during cycling but note the detoxified ammonia can read back as toxic after a day or two.
  • Chloramine removalPraisedReviewers on municipal water say it clears chloramines that plain dechlorinators leave behind.
  • DosingMixedThe small per-gallon dose is praised for economy but easy to mismeasure on small tanks.

About the Seachem 4 Pack Prime 500ml

Prime is a concentrated water conditioner for both freshwater and saltwater aquariums. It removes chlorine and chloramine from tap water. It also detoxifies ammonia, nitrite and nitrate, and it detoxifies heavy metals found in tap water at typical concentrations.

Prime contains a binder that converts ammonia into a safe, non-toxic form the tank's biofilter can readily remove. This matters because removing chloramine frees ammonia. It can be used during tank cycling to ease ammonia and nitrite toxicity. It also promotes the production and regeneration of the natural slime coat.

Prime is non-acidic and does not affect pH. It does not overactivate skimmers. Use it at start-up and whenever adding or replacing water. A single 100 mL bottle treats 1000 US gallons of tap water.

Pack size
Pack of 4
Volume
500 mL (16.9 fl oz) per bottle
Water type
Freshwater and saltwater
Removes
Chlorine, chloramine and ammonia
Detoxifies
Ammonia, nitrite, nitrate and heavy metals
Dosage coverage
100 mL treats 1000 US gallons
pH impact
Non-acidic, does not affect pH
Brand
Seachem

Specifications

size
16.9 Fl Oz Pack of 4Source

Questions and answers

Does Prime remove ammonia or just detoxify it?
It converts ammonia into a non-toxic form that the biofilter still consumes. The ammonia is not removed from the water, and the binding wears off, so a cycled filter and water changes still matter.
Can I use Prime while cycling a tank?
Yes. Seachem says it can be used during cycling to ease ammonia and nitrite toxicity. It does not stall the cycle because the biofilter can still process the bound ammonia.
Will Prime change my pH or affect a protein skimmer?
No. It is non-acidic and does not shift pH, and Seachem states it will not overactivate skimmers.
How much water does a bottle treat?
Seachem rates 100 mL for 1000 US gallons of tap water, so a 500 mL bottle treats roughly 5000 gallons. Dose for the volume of water you add or replace, not the whole tank.
Is it safe for saltwater and reef tanks?
Yes. Prime is made for both fresh and salt water and also detoxifies heavy metals at typical tap concentrations.
Does it remove nitrate?
It detoxifies nitrite and nitrate rather than removing them. The biofilter still has to export them, so keep up water changes.
Where is the Seachem 4 Pack Prime 500ml cheapest?
At Walmart, for $75.01, as of our latest check.

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