large quantities of bottled (or filtered) water - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 02-01-2010, 08:17 PM Thread Starter
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large quantities of bottled (or filtered) water

My tap water is very hard and has a rather high pH (around pH = 8.5). I believe this has been preventing my crs and blue tiger shrimp from reproducing.

I am looking for the best(easiest and cheapest) solution for acquiring a supply of water that will more closely match the ideal conditions of these shrimp. Can anyone recommend a water filter process or any other possible solutions for me?

29g, hi-tech with CRS
ADA mini-s, low tech with CRS at the office
40g breeder, low tech with cardinals and amano shrimp
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post #2 of 5 (permalink) Old 02-01-2010, 08:34 PM
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Tap water has essential minerals and other important elements, but does not mean that you cannot substitute some of your top-off water with RO water or distilled water. Some people use collected rainwater from a roof top. Maybe you can find a happy medium. Distilled water is usually 7.0ish pH, so a 50/50 mix of your tap water and distilled will lower your pH but requires conscientiousness when doing water changes. If you always use the same method for mix your water you should always have the same results. Find the medium between the two values and thats your pH. KH and GH can also be figured this way.

Google distilled aquarium water and start reading... Thats what we all did at some point
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post #3 of 5 (permalink) Old 02-02-2010, 09:56 PM
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Reconstituted RO water or RO water mixed with your tap water.
For just shrimp, if you have a neighborhood grocery store like I do, you can fill your empty jugs with RO water for 39 cents a gallon.
 
post #4 of 5 (permalink) Old 02-03-2010, 12:38 AM
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Get some RO water from the grocery store and test mixes with your tap water. Test GH, KH and pH. Really try to get the GH and KH right, and not worry so much about the pH.

Try:
25% Tap + 75% RO
50/50
75% Tap + 25% RO.
Run the test for a week or two, testing every few days, to be sure the mix is stable.

If you like the results then you can buy the RO from a grocery store or fish store (shop around for price) or you can buy a reverse osmosis filter for your house. There are some that sit on the shelf and might produce enough for a water change, but are pretty slow. If hard water is also a problem in the house (soap won't lather...) then you might look into a whole house filter that works in stages.

End run...
do small frequent water changes to introduce the new water to the livestock. Perhaps 2-3 25% water changes per week for a month will lower the mineral levels slowly enough that the fish and shrimp will adapt.
After that you can do whatever water changes are needed, but will need to mix the same recipe every time.
Top off with reverse osmosis water.

The same info will work if rain water is a viable option for you.
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post #5 of 5 (permalink) Old 02-03-2010, 12:56 AM Thread Starter
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Thanks for the advice. I will certainly read up on all the options you guys have mentioned and look into a RO filter for the house. Hopefully I will soon be able to report successful results in the form of many many baby shrimps.

29g, hi-tech with CRS
ADA mini-s, low tech with CRS at the office
40g breeder, low tech with cardinals and amano shrimp
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