I always keep this on hand for adding new water. Since it is concentrated it doesn't take much to do the job, the bottle will last a long time. I use a pipette to dose the minimum effective amount since I learned from Cory that it takes some oxygen out of the water as it works on the chlorine. Using minimal effective dose means minimal oxygen loss, while also being more economical.
Very good product! Quick delivery!
I use this every week during water changes.
Prime is one of the best products you can buy for your pet goldfish! Thank you, Mr. Cory, for the quick delivery!
I've used seachem prime for years. It does what it claims and I prefer it to any other dechlorinator/water conditioner I've previously tried. I love that it's concentrated so a 500mL bottle will last me a long time.