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Prime Prime® is the complete and concentrated conditioner for both fresh and salt water. It should be the first choice conditioner when setting up a new tank, adding, or changing water. Prime® removes chlorine, chloramine and ammonia. Prime® converts ammonia into a safe, non-toxic form that is readily removed by the tank’s biofilter.

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Stability Stability® will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: “new tank syndrome”. Stability® contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, and nitrate.

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Clarity Clarity™ is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe. Clarity™ is the only clarifier on the market that does it all! Clarity™ will clear all types of clouding.

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  ..Prime® saved my tank and all the fish in it. I can not stress enough how impressed I am with this product. I was particularly surprised with its ability to detoxify nitrite while still allowing the cycle to continue unimpeded. I strongly believe that the cycle completed much more quickly than normal due to the ability of the water to hold higher levels of nitrite without adversely affecting the fish.  

Jerry Reid

  I recently upgraded to a bigger salt water fish tank, for weeks my ammonia was off the scale At the advice of the fish store I deal with, I used your product Stability® as directed and could not believe how well it worked, everything back to normal now. I used to use Cycle but not anymore, the Cycle did not work in this case but the Stability® did. I just want you to know you have a new customer that love's your products, and I look forward to using other products you have out there.  

Russell Ross


I wanted to commend your company for having the best aquarium products on the market. I have bought and tried 2 Seachem products,Prime® and Neutral Regulator™. I was urged to buy Prime® by some concerned people on after I was having cycling issues with my tank, and my clown loaches were showing signs of stress, and my nitrite readings were off the scale. Prime® did exactly what your company said it would, and saved my remaining clown loaches from nitrite poisoning. Thanks for the great products....products that do exactly what they are designed, and promoted to do.


Nick M., Atlanta, GA