Seachem Prime 325ml - Aquarium Water Conditioner, Fish Tank Maintenance, Aquarium Setup & Maintenance, 325g

Wonderful stuff. Great value.. Always use this now.

Best aquarium water conditioner ever. Highly concentrated neutraliser for chlorine, choramine, ammonia, nitrites and nitrates. This is not a substitute for water changes though. To be used with regular water and filter maintenance. Great value 1/3 extra free bottle!

Definitely works i use it at the fist sign of problems and with most water changes won't be without it for my tropical fish now.

Always perfect!

Perfect for new setups or just maintaining existing ones. Been using it for years to dechlorinate and keep harmful ammonia neutralised if present. It just works!

Not very good primer

THIS STUFF WORKS!! It detoxifies ammonia by converting it from the toxic form (NH3) to non-toxic NH4. I have a seneye device in my tank which lights up if NH3 rises above 0.25ppm. The light came on but I couldn't get to the tank for another 7 hours or so.. But when I did, I added prime (dose for the whole tank) and the light went off within 30 seconds. I highly recommend using it in conjunction with Stability live bacteria, which will convert the NH4 into nitrite and then nitrate. I also didn't get any false readings on my master test kit unlike when I had previously used API Ammo Lock (which is now in the bin). The bottle says only 5ml is needed for 200L of aquarium water.. So one bottle is going to last me ages for my 180L tank.

At first I didn't get the sulpha smell and got a little worried but that comes with time as always you compare the bottle you had to the one you buy this is great stuff and will definitely buy again when I need to