Seachem Prime Water Conditioner

Hurry only 36 left!
Hurry only 36 left!

Prime water conditioner is one of the best products for stretching your dollar. It is very concentrated much more so than other conditioners but lacks things like buffers and stress coats.

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.

Customer Reviews

Based on 26 reviews
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R
R.
Reliable product

Seachem Prime is always a good conditioner. Was cheaper here compared to Amazon. (When I bought it.)

R
R.

Products came well packed with fast shipping as usual. Been using Prime for many years. Never had a problem that I could associate to this product. Very cost effective.

J
J.S.
Great product

Compared to other products it’s great because it last much longer. Does 50 gallons per cap compared to 10 gallons with others. Love it. Always a pleasure to do business here as well

D
D.O.
Seachem Prime

As always, my shipment arrived in great condition and well packaged. The distanced from Washington state to Massachusetts made good timing considering you are miles away. It's a great product. I water change 2x a week. I add Stressguard in the mix and my fish sre happy. Thanks Aquarium Co-Op

L
L.
Prime water conditioner

Well I'm running 2, 75 gallon aquariums and 1, 55 I change water in them sometimes twice a week . It just to easy to add a capful or two while filling up. And couldn't beat the price when I purchased it. Oh and the 2 melon swords I purchased are sweet. Thanks again Co-Op.

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