Does aged water has ammonia?

[Chop]

Hi all, I am new in this hobby of keeping CRS.

I recently realized that my aged water for about 2-3 days contained small trace of ammonia.
I am using Prime / Shizhen to age water without air bubble.
Does this happen to yours and if so, how to get rid?
Thanks in advance.

[Shaihulud]

Chloramine can decompose to form aqueous chlorine and ammonia I think.

[Navanod]

You'll also find some nitrate in the water, which is also normal. Short of using RO/DI filters, you cannot remove the ammonia, but Prime should be able to lock it into an inert form since you're using that

[Chop]

Chloramine can decompose to form aqueous chlorine and ammonia I think.

You'll also find some nitrate in the water, which is also normal. Short of using RO/DI filters, you cannot remove the ammonia, but Prime should be able to lock it into an inert form since you're using that

Thank you for your prompt reply.
So that could be one of the reasons some of the my shrimps died every time after I changed water.

Looks like I have to spend more $$ on RO/DI filters! Any recommendation which brand and place to purchase?

[HeMan]

Your shrimps died after you water change is not mainly due to the ammonia in the age water.

It might be cause by the change of PH

Did you do large amount of water change?

[Chop]

Your shrimps died after you water change is not mainly due to the ammonia in the age water.

It might be cause by the change of PH

Did you do large amount of water change?

My water changes are usually between 10% to 20%.