Clean water is EVERYTHING. This and this factor alone means the difference between a thriving ecosystem bursting with healthy life forms and colors, versus and dead, smelly and near decomposing aquarium.  And unfortunately, if you have owned and maintained a few aquariums in your time, then you probably know already how tough it is to keep the water clean without proper knowledge and equipment.

Luckily for us, there are heaps of water conditioners out there today to help with the problem. But choosing a good water conditioner out of a sea of thousand others is a tough job. But, one product we have our eyes set on today is the Seachem Prime Water Conditioner.

The Seachem Prime Water Conditioner has been receiving a lot of love from aquarists all around. And we want to find out why, firsthand! Stay with us and read along as we review the Seachem Prime Water Conditioner for you! By the end of this review, you will truly find out if this product is worth your money at all. Let’s start!

Seachem Prime Review: How Good is This Water Conditioner

The Seachem Prime Water Conditioner, from its first look, looks like just about any other water conditioner. It comes in an open mouth bottle with cap. The jar is white and you get about 500 ml, or half a liter, of product. From the smell of it (yes we sniffed it too.. . . .) it doesn’t smell anything funky or funny, but isn’t all floral and luxurious either. It definitely had a pungent punch too…  . . .. but, nothing that could hurt your aquarium water or fishes or plants. Now, let’s dig deeper inside the Seachem Prime Water Conditioner bottle!

Water Conditioning

If you read the bottle of the Seachem Prime Water Conditioner, then you should see that it removes chlorine, chloramines and detoxifies ammonia. It curbs and maintains the water’s chlorine and chloramines levels, but takes extra step to take care of the ammonia produced by your livestock. The solution converts ammonia into a safer, more non-toxic form that is easily removed by your tank’s bio filter media. It does not clog, or create any sort of resistance that could hinder or compromise with the tank’s filtration process. If anything at all, it makes the process go a lot smoother!

When Can You Use It?

You can use the Seachem Prime Water Conditioner in just about in any tank you want. It could be used during tank cycling to alleviate nitrite toxicity. You can also use it at start-up, and whenever adding or replacing the tank’s water. And of course, you can use it in any existing water tanks that need to be taken care of in terms of ammonia, chlorine, chloramines and nitrates. It contains a special binder which  renders ammonia, nitrite non-toxic.

What’s particularly unique about the formula is its occurring reduction process which breaks the bonds between chlorine and nitrogen atoms in the chloramines molecule, allowing the release of the chlorine atoms, and then finally replacing them with hydrogen to create ammonia. The Seachem Prime Water Conditioner also provides slime coat in the most naturally way instead of relying on artificial slime compounds.

Will It Change The Property of My Tank’s Water?

The great thing about the Seachem Prime Water Conditioner is that it can be used in conjunction with other aquatic products like Seachem Stability and StressGuard. The formula is non-acidic so it never manipulates or messes with the water’s pH level. On top if this, the Seachem Prime Water Conditioner is also not going to over activate skimmers!


Many aquarists know that one type of product won’t work for every type of aquarium setups. And that’s such a chore, really. But luckily, the Seachem Prime Water Conditioner can be used in both fresh and saltwater setups, even in reef tanks. It will not skimp back in performance in either of the setups and will do the exact same thing, every time! It is also great with tap water. Very convenient while water change.



So how do you know how much of the Seachem Prime Water Conditioner to use in your tanks? Well, only a 100 ml bottle is required to treat 1000 US gallons of water. Yep! This half a liter bottle is going to last you a long time for sure!


  • Removes chlorine and chloramines
  • Reduces ammonia
  • Provide natural slime
  • Does not manipulate water pH
  • Won’t overactive skimmer
  • Boosts the filtration process
  • No change in water hue


  • Odd smell
  • Slow acting

Frequently Asked Questions (FAQs) about the Seachem Prime Water Conditioner:

How long does it take to get to work?

Well, the packaging says that it shows it’s magic almost immediately, but most users have reported that it works over several hours, if not overnight. It should remove unwanted chemicals almost immediately, but to get the water cleared up, you may have to wait several hours or so.

Can I use this in my pond?

If your pond is filled with tap water, then you could use the Seachem Prime Water Conditioner without a second thought.

Is there an expiry date on this thing?

There’s none mentioned on the bottle or the packaging, but we have inquired and the formula will apparently last for as long as you can keep it. No expiry on it, basically!

Final Words

So, there you have it, folks! The Seachem Prime Water Conditioner reviewed and tested. There’s no denying that this product is a good one. It may be slow or a little inconsistent here and there, but it’s definitely doing a lot for your water. We would particularly like it better without that smell, but hey, you can’t get everything. Overall, it’s good stuff. We recommend it.

With this, it’s a wrap. Thank you so much for staying with us and reading along. We will see you again with yet another product and review soon. Toodles!

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