







Seachem Safe 1 Kilo
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Bradley H
Greater than one weekI mix it by the gallon jug to use in my fish room for water changes and it works great and is a great value for the money compared to the premixed gallon jugs.
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Michael P.
> 3 dayPerfect for keeping my Axolotl tub ammonia free! Axies put out high amononia and keeping the tubbed is an every other day job. This stuff helps me drag out water changes. Usually last 2 maybe 3 days. I use 1/4 teaspoon in 3 gallons of water for 2 Axolotl.
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Lauren Saunders
> 3 dayThis is the product fish stores dont want you to buy. This is the exact same product as Seachem Prime, just in the concentrated powder form. If you have huge tanks, this is the way to go. Ive got 800 gallons worth of tanks right now and do weekly 50% water changes and its lasted me well over a year. I suspect Ill have this a few years. This question comes up a lot in our fish groups; when do you add the dechlorinator? and my answer for you is while you are filling up. As soon as I turn the water over to start filling directly into my tank, I sprinkle the powder where its filling so it can dissolve (although this isnt even necessary) you can add the powder before filling, during filling, or after you are done filling and your fish should be fine. I used to live in California where the water was TERRIBLE and even my delicate fry did perfectly fine with this. No need to add in a bucket before putting in your tank, its not practical. FYI this product smells incredibly bad, this is normal. The fresh container gave me a headache when I first opened it. So keep the container closed whenever you can and consider putting it in a ziplock bag.
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Ben S
Greater than one weekI don’t know of any other product which can treat such a huge volume of water for such a low price. This stuff is perfect - it dechlorinates your water without adding other random crap you didn’t ask for like aloe vera. Seachem is definitely the gold standard in dechlorinator and safe is even more cost effective than prime.
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Wayne D.
> 3 dayVery good
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JT Strow
> 3 dayFirst & foremost this smells just like Prime. So don’t think that u can get away from that unpleasantness. lol! But it’s just as good (IMO) & a little bit cheaper too. I either use this or Prime exclusively. I’m sold on both products! WINNING!!
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d cummins
> 3 dayLove
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Tyson
> 3 dayWorks well, smells like eggs. I cant keep the container in a room where I enjoy my fish tanks. Would be 5 stars if it wasnt for the stench
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DagDerNiT
19-04-2025I have a huge 400 gallon cichlid tank with a harem of the funny Clown Loach. For some reason and its most likely from a hidden fish decomposing, the tank water will spike with nitrates even after doing its weekly water change and filter media clean up. The easiest way I have found to remedy this is to add a teaspoon of the Seachem Safe. Within 20 minutes, fish will seem to get their energy back and return to chasing each other ;) Seachem products ROCK! 5 gold Stars, and 2 thumbs wayyyy up!
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DMN
> 3 dayI only use this for all of my tanks