How To Eliminate Chlorine During Water Changes

silvery37

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In big tanks how do you eliminate chlorine from the water and still do an efficient water change? In a small tank it is easy to remove the required water and put the new water in a bucket and add chlorine neutralizer to the bucket. With a big tank using a bucket would take quite a few trips. Is it ok to add tap water directly to the tank and then put the chlorine neutralizer in the tank?
 
I've actually wondered this myself. I don't keep very large tanks, so iv never had to worry about it. But if the tank has fish in it, it would probably not be a good idea to add tap water in without neutralizing the chlorine.
 
takes us ages to do ours as we use a 2ltr bottle and add in the right amount of tap safe like that but tank is in the kitchen nearly
 
Just run a hose straight into the tank and add the dechlorinator as you go, a little before you start refilling, a bit more half way through and the rest when you finish.
 
Just run a hose straight into the tank and add the dechlorinator as you go, a little before you start refilling, a bit more half way through and the rest when you finish.
Exactly what I do with my Python. Even if you don't add it until after you finish filling the tank (which I have done before), you won't experience any problems. Even on a large tank where it may take 5 minutes for you to refill it, the chlorine won't have time to have a serious effect on the fish orthe bacteria.
 
But what about the temperature when using a hose? I have been using the bucket method and filling with warm water from a kettle to bring the water up to temp, my hose is a cold water tap only. Can i fill up using the hose with cool water and adding dechlorinater as i go? GRJ :rolleyes:
 
i've never seen a significant temperature change on any of my tanks unless i do a really large water change (as in, 50% or more). In fact, all my tanks are at 80F+ during the summer and I add cold water straight from the tap. No issues, no temp change. If anything the fish seem to appreciate the change. For many fish a drop in temp triggers spawning behavior (cories, for example) because it signals the spring thaw.

As for dechlorinator, sometimes I add it, sometimes I don't, sometimes before, sometimes after, i've not experienced any problems.
 
i've never seen a significant temperature change on any of my tanks unless i do a really large water change (as in, 50% or more). In fact, all my tanks are at 80F+ during the summer and I add cold water straight from the tap. No issues, no temp change. If anything the fish seem to appreciate the change. For many fish a drop in temp triggers spawning behavior (cories, for example) because it signals the spring thaw.

As for dechlorinator, sometimes I add it, sometimes I don't, sometimes before, sometimes after, i've not experienced any problems.


Thanks for that! GRJ :good:
 
But what about the temperature when using a hose? I have been using the bucket method and filling with warm water from a kettle to bring the water up to temp, my hose is a cold water tap only. Can i fill up using the hose with cool water and adding dechlorinater as i go? GRJ :rolleyes:

get a hose adaptor that you can put on any taps etc (the kitchen is a mixer tap so i use this to get the temp right) and use a hose


chris
 
For temperature, I jst get it close to tank temp from the tap before I flip the thing to start the water through the hose. For a 25% WC, even if the new water is 10 degrees (F) off, it won't change the tank temp but 2.5 degrees which is fine.
 

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