daily water changes - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 21 Old 11-24-2013, 03:06 PM Thread Starter
daily water changes

Are they really necessary? When I have my180 going a 25% daily would be crazy.
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post #2 of 21 Old 11-24-2013, 03:33 PM
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Not for cichlids, no. Is your tank cycled?

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post #3 of 21 Old 11-24-2013, 04:25 PM Thread Starter
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Not for cichlids, no. Is your tank cycled?
Oh yeah, it's cycled. I just read so many threads of people doing 25% every day or every other day. Seems excessive
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post #4 of 21 Old 11-24-2013, 04:31 PM
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Quote:
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Seems excessive
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It is.
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125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #5 of 21 Old 11-24-2013, 04:36 PM
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You should only need to do 50% water changes if you've got a cycling problem, or with some medications. You'll also come across this with certain breeding situations, but for a reasonably set up & stocked cycled tank it would be excessive.
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post #6 of 21 Old 11-24-2013, 05:05 PM
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I do 15 to 20% per day in my stocktanks but only because it automatic. Timer goes off, valve opens adds water, extra water out the overflow.
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post #7 of 21 Old 11-24-2013, 05:45 PM
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My guess is that you're looking at betta fish threads. Typically, the people who keep bettas in 1 gallon or less need to do pretty frequent water changes.

But for a larger cycled tank with zero ammonia & nitrIte and nitrAtes in a good safe range it's certainly not necessary. 25% to 30% a week depending on your stocking level is a pretty good rule of thumb.
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post #8 of 21 Old 11-24-2013, 06:13 PM
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I do 50% per week, but I have messy goldfish. I just left a shop that hasn't done a water change in 2 months on a 180 with discus. And the water and tank were crystal clear. You could barely see the water.

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post #9 of 21 Old 11-24-2013, 06:36 PM
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In my experience frequency of water changes has little to do with water clarity. Clarity is more a function of filtration.
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125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #10 of 21 Old 11-24-2013, 07:02 PM
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Well if they were mine I would have been changing the water. I don't think I have ever not changed water in two months...*gasp*

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