Water changes - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 03-01-2013, 02:18 PM Thread Starter
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Water changes

im curious to know, how do everyone do there weekly water changes?

do you treat the water before you put it in the tank or do you treat your water after you fill your tank?
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post #2 of 9 (permalink) Old 03-01-2013, 02:21 PM
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I do 70-80% water change using Python hose. Tap off and add Prime.
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post #3 of 9 (permalink) Old 03-01-2013, 02:29 PM Thread Starter
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Quote:
Originally Posted by herns View Post
I do 70-80% water change using Python hose. Tap off and add Prime.

thanks, i was about 2 do my 50% change.... i wanted 2 make sure it was safe for the fish
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post #4 of 9 (permalink) Old 03-01-2013, 06:59 PM
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Quote:
Originally Posted by herns View Post
I do 70-80% water change using Python hose. Tap off and add Prime.
I do the same, except only about 40-50% water change, and I add the Prime as soon as I start adding new water. I use a garden hose, connected to the hose bib outside on my raised deck, and a PVC "U" shaped end at the tank, which hooks over the top of the tank, with the open end about half way down in the tank, and a tee fitting on its end to diffuse the water flow. I start with the empty hose in the tank, turn on the water and let the hose fill and air bubbles stop, then turn off the water, remove the hose from the hose bib and carry it to the end of the deck where the drain water can water the plants. To refill, I just carry that end back to the bibb and reattach and turn the water back on.

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post #5 of 9 (permalink) Old 03-01-2013, 11:49 PM
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I have an 8 gallon tank, that really only has a bout 6.5 after aquascape. I don't actually treat my water, as i have well water that is 9kH after the softener believe it or not) and 7.6 Ph to start with.. so i kind of lucked out

i only do around a 15-20% change every few days. because the tank is so small, i just dip a half gallon pitcher in there to drain the water down.
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post #6 of 9 (permalink) Old 03-02-2013, 12:02 AM
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I do about 40% weekly via the 'bucket method' (I can't WAIT until I get a python, lol) and add Prime before I begin filling back up. Easy!

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post #7 of 9 (permalink) Old 03-02-2013, 12:06 AM
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I use the python as well, it makes w/c so easy.

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post #8 of 9 (permalink) Old 03-02-2013, 12:18 AM
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I'm running a 68 Gal. freshwater tank with a 26 gal. sump.

In theory, the reason we do water changes is to keep the Nitrates in check. If your plants are doing that for you great. If the Nitrate levels are rising then do a change to bring them down.

I test my water for Ammonia, Nitrites and Nitrates and PH once a week.

If my Ammonia and Nitrite levels stay at 0 I know my wet-dry filter is working.
If my Nitrates begin to approach 10-12ppm I do a 10% water change.

I then test the next day after any change.

Otherwise I leave well enough alone.

The reason we treat tapwater is to remove the Cloromines. My tapwater has almost no Clormines but I treated anyway. I treated before I added the new water and let it sit for an hour. This also allows the water to warm in the room a bit.

(I used to use tapwater for changes but have found that my city water has fluctuating Nitrate levels. At times the Nitrates can read 15-20ppm.
Using this water would just raise my levels.

I have since changed over to RO water from the grocery store and treat it to put the minerals back in.
)

So, for advice, I would suggest that you test your tank water before contemplating a change, and also test what comes out of your tap the exact same way.

This gives you hard data to work from. Don't do a change just because someone says you should. Know why you are doing a water change and what effect that change is having.
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post #9 of 9 (permalink) Old 03-02-2013, 01:18 AM
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A planted tank, with lots of plants, all growing well, will not build up nitrates in the water, if it has a "normal" fish load. But, it will probably run short of nitrates, as well as phosphates and potassium and trace elements. So, that is why we dose fertilizers. If the light intensity is low enough the fertilizers may not be needed at all. One reason for doing water changes is to avoid a build up of anything in the water. If you do a 50% water change every N days, you limit the maximum build up of anything in the water to twice the amount added to the water in N days.

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