When doing water change....?

Question

When I do a PWC in my tank, do I add the amount of dechlorinator that I should for my entire 46 gallons, or jsut the amount for how much water I am adding?

Answer 1

It depends on how you add the water back. If you add the water back using a bucket or something like that then you just add the water conditioner to the water in the bucket. If you use something like a Python that adds the water directly to the tank then you use enough to dechlorinate the whole tank.

I guess it also depends on the brand of water conditioner since Prime, what I use, states that if you add the water directly to the tank you need to dose based on the aquarium volume. http://www.seachem.com/products/product_pages/Prime.html

Answer 2

You add dechlorinator for the amount of water you are changing, regardless of whether you premix it in a bucket or you are adding water through something like a python. If you have high levels of Chlorine or Chloramine, you might want to double up on water conditioner, but treating the whole tank for a partial water change is wasteful.

Answer 3

You should try to add it based on the amount of water being replaced. If you are doing a 25% change then add enough for 10 gallons.

It won't hurt to add more as long as you aren't adding the whole bottle.

Answer 4

Just do how much you are putting back in, since you aren't doing a full water change, in that case put in how ever much that treats the full 46 gallons.

Answer 5

ONLY dechlorinate the water you are adding. You should not add additional chemicals to your tank unless it is absolutely necessary.

Answer 6

Just the amount for the water that you're adding.