When will Clorhine disappear from tap water?

you need water conditioner, as others have mentioned most water companies have switched from chlorine to chloramine which will NOT evaporate. water conditioner will also help remove other harmful metals which also don't evaporate.

Why would you even decide to get a fish when you don't get the proper tools to take care of one?

Any who, you must have dechlorinator/ water conditioner. Chlorine is one thing to worry about in tap water, but heavy metals and chloramines do not evaporate which means that your fish are probably suffering right now.

Go to the pet store today and get either Stress Coat Plus or Prime, but if you can't find those, any dechlorinator will work. Just get it today or your fish won't last very long.

Not all the bad stuff will 'disapear' but you can add tap safe or stress zyme to get rid of it. Or a good idea would be to buy RO water from your LFS it's about £3-£4 per 25L then you know it is just pure water.

good luck xxxxxxxxxxxxxxxxxx

It's good to let tap water sit for one day (24hrs)... then it should be fine.

My female betta has lived for almost 3 yrs now and I've always let new water sit for 18-24 hrs... I moved her to "bigger home" too ... 5 gallon after 3 months. hope that helps :)

I also use use tetra Aquasafe if im adding alot of water. It's for nuetralizing chlorine.

Clorine dissipates (not evaporates) from water within 24 hours, and the more you agitate the water the better. However, many water depts are now adding chloramine to the water which is far more tenacious then clorine and you HAVE to use a water conditioner to neutralize it.

Bottled water

Some municipalities supposedly use chloramine, which is a chemical that does that escape as a Cl gas (per the methods described). In this case, you need to use a de-chlorinator.

You can tell if your fish are getting chlorine or chloramine burns by looking at their gills to see if it has become red / inflamed.

It should evaproate in 24 hours however the water will still kill the bettas. In the water are other heavy metals such as cloramine which will never evaporate so either use bottled water or buy AquaSafe

48 hours should be fine, 72 if you want to be safe.

I've done 100% water changes with 24 hour old water for goldfish when I was 6 or 7...probably not too good for the goldfish, but they lived and it's better than not changing their water at all.

just use a tap water conditioner, there only like 2 dollars.