The right way to add anti-chlorine ?

  • We are currently upgrading MFK. thanks! -neo
Are you saying that if I pull 10 gallons out of my tank, regardless of how large my tank is, my fish will be fine if I dose the entire tank for whatever my brand of dechlorinator says is recommended for just 10 gallons of water?

not necessarily.

only seachem prime recommends dosing the entire tank.

others do not.

I use a Hagen dechlor and I only dose for the volume of new water only.
 
not necessarily.

only seachem prime recommends dosing the entire tank.

others do not.

I use a Hagen dechlor and I only dose for the volume of new water only.

That is not correct. It seems even Hagen agrees to dose based on the full aquarium volume and not just what is being replaced when performing a water change directly in tank.

An email I sent them and the reply from Hagen.

( bsp.brentsmithphotography@gmail.com 12/22/2011

I know you have directions for dosage when treating new water first before introduction to an aquarium on your labels but I was wondering if I should dose on the complete aquarium volume with your product when I perform an in tank water change. Say a 100 gallon tank with weekly water changes of 50%.

Brent Smith


Reply:

no-reply@hagencrm.com

Tanya Schwab (Hagen Customer Service Rep) 12/23/2011

Thank you for taking the time to contact us.

Correct. The dosing instructions for water changes consider the total gallon size of your aquarium - not the amount of water changed.

Regards,
Customer Service
Rolf C. Hagen Inc. )
 
..........

Tanya Schwab (Hagen Customer Service Rep) 12/23/2011

Thank you for taking the time to contact us.

Correct. The dosing instructions for water changes consider the total gallon size of your aquarium - not the amount of water changed.

Regards,
Customer Service
Rolf C. Hagen Inc. )

you forgot to add a "if so why?"
 
Adding chlorinated (or chloraminated) water directly to your tank gives the free chlorine a chance to react with your fishes' gills before being neutralized by the dechlorinator. It's not an instant reaction so the greater the concentration of dechlorinator, the faster it's dechlorinated. It might be more work to mix the tap water and dechlorinator ahead of time outside the tank but this is not a hobby for the lazy.
 
so im looking at the water reports for my area
http://vcwd.org/downloads/VCWD_2010_CCR_Eng.pdf
and the water seems to be pretty good. other than the really low pH, its a lighter yellow than the test card color, which i suspect is from the addition of fluoride, it seems that i can age my water without having to treat it to add to my tank.

does this seem right? i see chloride and chlorine values. it also says the chloride is from natural deposits, is this even the same as chlorine?
 
Chloride is not the same as chlorine. One thing to note is that because of the way free and total chlorine is measured in water treatment, the water quality reports may report chlorine when they actually use chloramine to disinfect.
 
You could just call them or do some Googling and see if any other hobbyists in your area have discussed this.

Or you could just assume you have chloramine and treat accordingly. It's not expensive unless you have a large pond.
 
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