Testing water - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 8 Old 05-15-2012, 10:47 PM Thread Starter
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Testing water

how often does everyone test the water in their tanks? you guys are prob going to get upset with me but i have only tested my water a couple times in the past year. I perform 25-40% water changes a week and add prime, My water is crystal clear and fish are doing great. I can seen to be abel to tell if something is wrong by the way the water looks or how the fish are behaving (thats when i test). I have been told in the past people test way to often and then try all these chemicals all the time because they are worried about what the tester shows....

So, go easy on me........
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post #2 of 8 Old 05-16-2012, 12:18 AM
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With regular water changes once a week you should be ok. Thats pretty much what I do, when something doesn't seem right I check. Although with multiple tanks I check a few whenever one seems off. I still like to check them all once a month though.
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post #3 of 8 Old 05-16-2012, 01:44 AM
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Good post. Since mine is somewhat new, but cycled, i still check it after every water change.
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post #4 of 8 Old 05-16-2012, 08:33 AM
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Newer tanks need a little more testing than mature tanks older than a year. Once the tank is well established and stable, then testing can be reduced.

My 75g and 180g (when I had it), were well matured and since the initial cycle, I only really tested them within a week of adding new fish. The 75g tank, I have not tested for Ammonia, Nitrite since the last fish was added over a year ago. Nitrates always stay the same level and I do a 60% water change once a week which reduces it back. I test usually once a month. pH again, I test once a month.

My tap water is near perfect for Lake Malawi Cichlids and I know it doesnt change, the operator of the treatment plant lives 3 doors away from me and she always tells me if something is being added to the water system.

10g Fry / Hospital / QT tank (as needed)

75g Saltwater Reef, Ocellaris Clownfish, Lyretail Antias (baby), Lemon damsel, Longtail Fairy Wrasse, purple dottyback, snails, crabs and a few LPS corals.

220g Still sitting empty (come on Lottery I need the numbers to come up!)
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post #5 of 8 Old 05-16-2012, 11:56 AM
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Quote:
Originally Posted by CinBos View Post
Good post. Since mine is somewhat new, but cycled, i still check it after every water change.
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The tests should be done prior to a water change so you can ascertain the true state of the water in the tank. Testing it after (wait a couple hours or a day) is fine too as this will tell you how it changes, but once this is clear you only need test prior to the weekly water change.

Once the tank is established it should remain reasonably stable and when this becomes evident, tests can be reduced and even eliminated, as Tazman mentioned.

It is true that after a time you can discern from the fish's behaviour if something is not quite right, and testing them to determine any water issues is advisable. After a period of years it is fairly easy to see something out of the ordinary.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #6 of 8 Old 05-16-2012, 12:36 PM
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Quote:
Originally Posted by CinBos View Post
Good post. Since mine is somewhat new, but cycled, i still check it after every water change.
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Best time to test is BEFORE a water change so that you can judge how often and how much water should be changed to keep organic's low.
As fish grow larger ,or more numerous, what once might have been sufficient,may need to be tweaked.
Testing the water after a water change,won't tell you much .

P.S. posted before reading Byron's response.

The most important medication in your fish medicine cabinet is.. Clean water.
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post #7 of 8 Old 05-16-2012, 05:00 PM
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Quote:
Originally Posted by 1077 View Post
Best time to test is BEFORE a water change so that you can judge how often and how much water should be changed to keep organic's low.
As fish grow larger ,or more numerous, what once might have been sufficient,may need to be tweaked.
Testing the water after a water change,won't tell you much .

P.S. posted before reading Byron's response.
My apologies everyone, meant to say the other way around. I test before I do water changes.

125Gal: 7 Silver Dollars, 1 Albino BN Plecos, 1 Green Terror, 1 Gold Severum, Red Severum, 8 Rio Cahals, and 2 Festivum

55Gal: 3 German Blue Rams, 2 Bolivian Rams, 1 Super Red Pleco, 9 Bloodfin Tetras, and 9 Oto Catfish

29Gal: Quarentine/Hospital Tank

20Gal: Female Pastel Ball Python
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post #8 of 8 Old 05-17-2012, 05:28 PM
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Once a tank has aged (6mo-1yr) I hardly ever test, maybe once every 3-6mo. If I see a problem, whether is be excess algae, biofilm, water coloration, or fish behavior I usually test then.
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