Quick question about dechlorinating - The Planted Tank Forum
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post #1 of 4 (permalink) Old 02-29-2008, 05:55 PM Thread Starter
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Quick question about dechlorinating

So I have a bottle of API tap water conditioner that says to add 1 ml per 5 gallons to detoxify chloramines. Now when I do lets say a 20% (~11 gallons) water change on my 55 gallon tank, do I add 2 ml of this stuff or do I add the amount corresponding to the size of my tank (11 ml)?
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post #2 of 4 (permalink) Old 02-29-2008, 06:04 PM
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Do you add the dechlor to the tank itself or to the water-change water before you add it to the tank? If it's the former, dose for the entire 55g tank volume. If it's for the later, then dose for the 11g change volume.

Dunno exactly why, but that's what Seachem says in the directions for Prime, and they're a respected company who puts out no-BS products.
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post #3 of 4 (permalink) Old 02-29-2008, 06:09 PM Thread Starter
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Yeah, I am just siphoning out the water, then adding fresh water back in along with the water treatment. So it's not possible to "overdose" on the stuff? That is my main concern.

And as for Prime, I am just waiting to finish this bottle off so I can pick some up. Everybody seems to recommend it.
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post #4 of 4 (permalink) Old 02-29-2008, 06:44 PM
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You can overdose on that stuff, but it's not easy. If you're dosing directly to the tank, for the total tank volume then you won't overdose. I think the risk is that the thiosulfate, a reducing agent, will destroy the oxygen and suffocate your fish.

Anyway, that's not going to happen unless you miscalculate and add 5-10x too much, from what I remember.
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