dechlorinator

mvirata

mvirata

AC Members
Jan 5, 2007
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Philly, PA
www.myspace.com
Hi guys,

I just got the python to assist me with water changes. I killed many smaller fish to stress doing it the HARD way with the stupid siphon tube. All that shake it shake it BS drives them bananas.

I used to put dechlorinator in a bucket based on how many gallons were in the bucket but now I am placing tap water directly into the tank.

Do I calculate dechlorinator for the amount of NEW water I am putting in or do I just calculate the ENTIRE tank?

Any help would be appreciated.
 
I still make sure my water is de-chlorinated before it goes into the tank. My thinking is that if you calculate the whole tank, you are probably puting too much de-chlorinizer in. If you only calculate amount replaced, I am not sure that it would work properly because it is now diluted to the whole tank volume. Again, this is only my opinion and do not back this up with any scientific data.
 
you can add the dechlor for the entire tank It will not hurt, you can't overdose dechlor. Use PRIME it's the best.
 
Reddog80p said:
you can add the dechlor for the entire tank It will not hurt, you can't overdose dechlor. Use PRIME it's the best.
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Ditto.

If you just add the amount of dechlor for the water you are changing when adding water straight to the tank. THe water already in the tank will dilute the dechlor and it will not work effectively. Therefore you have to add the amount of dechlor for the total tank volume, even if you are only changing out a few gallons..

Blue
 
keep it simple take 10 gallons out put 10 gallons back then you need to treat the tank for 10 gallons of clorinated water.
 
THe water already in the tank will dilute the dechlor and it will not work effectively. Therefore you have to add the amount of dechlor for the total tank volume, even if you are only changing out a few gallons..
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huh? is that like which weighs more, a pound of feathers or a pound of bricks? the water in the tank is ALREADY dechlorinated. it has no chlorine. so, why would you add dechlorinator = to the tank volume if you're only dechlorinating 3 gallons? now, i'm not a math wiz ... but i think it's wrong. :idea:

on the other hand, it makes no difference since you can't over-dechlorinate your water. i'm just stuck on the logic here.
 
liv2padl said:
huh? is that like which weighs more, a pound of feathers or a pound of bricks? the water in the tank is ALREADY dechlorinated. it has no chlorine. so, why would you add dechlorinator = to the tank volume if you're only dechlorinating 3 gallons? now, i'm not a math wiz ... but i think it's wrong. :idea:

on the other hand, it makes no difference since you can't over-dechlorinate your water. i'm just stuck on the logic here.
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If you are adding water straight to the tank while using a python, you would need to add enough dechlorinator for the total volume of water in the tank, no? When mixing the "old" water with the new water, all of it will contain chlorine from the new water because you are mixing it...?

Blue
 
When mixing the "old" water with the new water, all of it will contain chlorine from the new water because you are mixing it...?
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true, but you've diluted it and thus it contains less chlorine than that which is in your tap water.

let's suppose that the instructions on your dechlorinator say it takes one drop per gallon to dechlorinate 1 ppm of chlorine.

and let's suppose that your tank is a ten gallon tank

and let's further suppose that your water has 1 ppm of chlorine in it.

when you fill up your tank the first time, you'd add 10 drops of dechlorinator.

now let's say you do a 50 percent water change. 5 gallons of water that has zero chlorine comes out and 5 gallons of water that has 1 ppm chlorine in it goes back in. you'd add 5 drops of dechlorinator, right? it's as if you've got a 5 gallon tank.

now, i have a well and don't use a dechlorinator, so i don't have a bottle here in the fishroom to look at. if the directions say "add 1 drop per gallon" and make no mention of the concentration of chlorine in your water, then you'd be right. you'd add ten drops to ten gallons irrespective of the chlorine concentration.

i'd be surprised if this was the case, since i would assume that chlorine concentration in tap water differs throughout the states and throughout europe or elsewhere. they could i suppose, simply state an "overdose" given that it's really hard to add too much dechlorinator and perhaps they figure that most hobbyists don't want to or can't figure out the math.

dunno.
 
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