Fish dying after water changes WHY!? - Tropical Fish Keeping - Aquarium fish care and resources

 
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post #1 of 9 Old 08-22-2010, 03:25 PM Thread Starter
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Question Fish dying after water changes WHY!?

Everytime I change the water in my 40 gl tank... at least two or three fish die. I dont know what I am doing wrong. Does anyone know what i could be doing to cause this. I am putting the chlorine remover in it. Just dont understand.
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post #2 of 9 Old 08-22-2010, 03:27 PM
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Which water conditioner are you using, how much water are you changing out each time, and are you careful to match the new incoming water temperature with the current water temp in the tank?

If you don't stand up for something you'll fall for anything...
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post #3 of 9 Old 08-22-2010, 03:32 PM
what fish are you keeping anyway?

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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post #4 of 9 Old 08-22-2010, 03:44 PM Thread Starter
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I did about 50% of the water today, i usually do about 30% of the water... but havent done it a couple days, so i decided to do a bigger one today. I have 4 tetras, 3 rasboras, 1 molly, 2 platys, and 4 guppys, oh and a catfish. An albino one. I usually refill the tank with the water hose... so its usually about the same temp, maybe a tad less then the tank.
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post #5 of 9 Old 08-22-2010, 03:47 PM
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What brand of water conditioner are you using?

If you don't stand up for something you'll fall for anything...
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post #6 of 9 Old 08-22-2010, 05:16 PM
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Is the hose hooked up to your sink or at least a faucet that you can adjust the water temps? If you are all of a sudden adding cold water to the tank that could be why your fish are dying on you. Their body's cannot adjust to temperature changes so fast like that.

Also, if you are not adding a water conditioner like Prime each and every time you do a water change, that could be killing your fish. The Ammonia, Chlorine in the water needs the conditioner to take it out.

How many fish have you lost?
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post #7 of 9 Old 08-23-2010, 11:57 AM
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All points raised by previous members are correct. The questions they posted need answering. But also, there can be an issue with pH (and less hardness). Do you know the pH of your tap water, and your tank (they may not be the same)?

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 #8 of 9 Old 08-23-2010, 12:32 PM Thread Starter
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Its some thio that my dad made up, he has been using with his water changes, im just going to pick up some prime today. Not sure about the water hardness, my dad will be checking the ph in my tap water today. He said the same thing yesterday. Thanks for the help. No the water hose isnt able to hook up to the sink faucet, from now on ill just get it out of the faucet or tub and put into a bucket ive been using only for fish. Thanks everyone, ive lost about six fish in two days :( Im taking my water in the tank to get checked today.
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post #9 of 9 Old 08-23-2010, 04:37 PM
so sorry on your loss =( hope you got the answers you were looking for

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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