Seachem 437 Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 1L

Use this regularly to keep my 30 gallon aquarium stable.

This is the best water conditioner on the market. It also converts toxic ammonia to non-toxic ammonium. But if your test kit only measures total ammonia you wont see the change in values - you have to buy a special ammonia kit to separate out the two types of Ammonia. As an overall water conditioner there is none better. Just remember you dont need to use too much (its very expensive) to get it to work but I know most of us want to be 100% safe. Works nearly instantly to remove chlorine.

Super value, delivered quickly thank you.

Quality was good and shipping was fast.

Does as it says on the tin

Did exactly what it was supposed to do

When my local large conglomerate pet store decided to stop selling any kind of decent sized water treatment, I turned to the one place who I knew would have it for a deal.

Prime is #1 for my tanks. Quickly deals with Clorine, metals etc. No risk of overdosing.

The item I received arrived unsealed and there was some sort of black sediment at the bottom. Genuine Seachem products are sealed and the one should be clear with no sediment. Goodness knows what is in this bottle.

The only water treatment I use for my tanks and top off water .