View Full Version : The Proper Method/Procedures of Water Change
32Bit_Fish
03-02-2009, 09:05 PM
Here is what I have been doing for w/c:
1. I add tap water to my 20g water storage tank
2. I use a small water pump to circulate the water after I added Prime and Baking Soda in the 20g water storage tank
3. Then I pump treated water to my main tank from my water storage tank.
My problem right now since I'm way overstocked my main tank, I am thinking putting 2 fish in a 20g. So I need this 20g water storage tank really bad.
Can I add tap water straight into my main tank and add Prime/Baking Soda after the tank is completed filled? I do 80% w/c each time.
Would the fish get stressed by the tap water since it is not being treated for Cholrine and PH. My tap PH is 7.0 and I add baking soda to buff it to around 7.6.
The fish will be exposed to the tap water for at least 20 mins while I'm filling the tank up with tap before I can add any Prime or Baking Soda.
Would this doable?
mikroll
03-02-2009, 09:09 PM
I use an active carbon filter at input when changing with tap water. very simple and very cheap too.
32Bit_Fish
03-02-2009, 09:12 PM
I use an active carbon filter at input when changing with tap water. very simple and very cheap too.
How would you manage to resolve the PH issue? I'm assuming you buff your tap water using baking soda.
Also, I'm not sure the active carbon filter would completely decholrine the tap water with such high water flow.
I turn my faucet to max when filling the tap, so I dont think the active carbon would help in my case.
mikroll
03-02-2009, 09:19 PM
How would you manage to resolve the PH issue? I'm assuming you buff your tap water using baking soda.
tap is about 7.8 and well is 8.2 and no need to play with ph
Also, I'm not sure the active carbon filter would completely decholrine the tap water with such high water flow.
ha ha , if you make a big enough size filter ( gang up in parallel)if can filter the entire city!!
I turn my faucet to max when filling the tap, so I dont think the active carbon would help in my case.
How many liter / hour does your taps suppy at?
32Bit_Fish
03-02-2009, 09:31 PM
How many liter / hour does your taps suppy at?
450-500 liter per hour.
small_ranchu
03-03-2009, 11:52 AM
Here is my way of doing water change. Let says I am doing water change for 90 gallons tank.
1. I take out water from the tank. (60, 70 percentage, whatsoever)
2. mixing baking soda with tap water in separate mixing bowl (5 tsp in take out bowl)
3. put 9 ml of Prime into the tank.
4. put tap water of same temperature back into the tank.
5. During refilling put baking soda water into tank proportionally (be patient here).
32Bit_Fish
03-03-2009, 04:59 PM
Here is my way of doing water change. Let says I am doing water change for 90 gallons tank.
1. I take out water from the tank. (60, 70 percentage, whatsoever)
2. mixing baking soda with tap water in separate mixing bowl (5 tsp in take out bowl)
3. put 9 ml of Prime into the tank.
4. put tap water of same temperature back into the tank.
5. During refilling put baking soda water into tank proportionally (be patient here).
How would you know the right amount of baking soda to put in that bowl, so the PH would reach your desired point in the 90G?
Also, you added Prime in the 90g before it is filled completely by the tap water?
mikroll
03-03-2009, 05:47 PM
450-500 liter per hour.
that is a low rate of flow.( 7-8 lit a minute).. you could get by with a small ( 2000 gram double filter easy) I use a 300 gram filter but do not have big volume required for taps water and so run slow through filter about 6 -8 liter min.
32Bit_Fish
03-03-2009, 07:51 PM
that is a low rate of flow.( 7-8 lit a minute).. you could get by with a small ( 2000 gram double filter easy) I use a 300 gram filter but do not have big volume required for taps water and so run slow through filter about 6 -8 liter min.
I'm not sure the filter you are talking about would work with the faucet in my bathroom.
Do you a pic or link of it? It's kinda hard to believe any active carbon would able to remove all the chemical the tap water with such flow rate.
Virginia ranchu
03-03-2009, 07:59 PM
A lot depends on your tap water...
I do large (90%) water changes every week, and all I do is siphon the water to a floor drain with a bucket over top of it (there's a hole in the bottom of the bucket). I add 1/2 teaspoon of Prime per 20 gallons (Prime neutralizes ammonia...this is important) directly to the tank and then fill with a hose from the tap. I only add enough Prime for the replaced volume of water, in other words, you don't have to be concerned with the final concentration of water conditioner. I then adjust the tap temperature so that it feels close by finger method to the aquarium water temp. Our water supply is buffered to have a pretty high pH. I have heard this is to prevent pinholes in copper pipes. I have had no problems with this simplified method. I even do this with very small fry.
If your water source has chloramines, a regular water conditioner that claims to neutralize chloramines with yield toxic ammonia unless it also contains an ammonia neutralizer. Many brands do not point this out, and I have lost fish simply because I used a different brand (ahem...Tetra:))
Rob
small_ranchu
03-03-2009, 08:22 PM
How would you know the right amount of baking soda to put in that bowl, so the PH would reach your desired point in the 90G?
I did trail and error method. 5 teaspoons is good enough for 90 G
Also, you added Prime in the 90g before it is filled completely by the tap water?
I added Prime right before I add tap water back into the tank.
32Bit_Fish
03-03-2009, 08:38 PM
If your water source has chloramines, a regular water conditioner that claims to neutralize chloramines with yield toxic ammonia unless it also contains an ammonia neutralizer. Many brands do not point this out, and I have lost fish simply because I used a different brand (ahem...Tetra:))
Rob
I think our tap water is from the same source. I will try your method for my w/c this weekend.
If my fish dies, you gonna give me yours. haha. J/K. >:)
mikroll
03-03-2009, 08:45 PM
I'm not sure the filter you are talking about would work with the faucet in my bathroom.
Do you a pic or link of it? It's kinda hard to believe any active carbon would able to remove all the chemical the tap water with such flow rate.
here is a link just found by google search to one , including list of flow rates filters sizes can handle,
http://www.home-water-purifiers-and-filters.com/pentek-chlorplus.php
Mine I built myself and is mounted on the wall and also connected to mains hot and cold and drain and suppy hoses.
32Bit_Fish
03-03-2009, 09:07 PM
here is a link just found by google search to one , including list of flow rates filters sizes can handle,
http://www.home-water-purifiers-and-filters.com/pentek-chlorplus.php
Mine I built myself and is mounted on the wall and also connected to mains hot and cold and drain and suppy hoses.
Thanks for the link.
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