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Clamped Fins
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Slangl6238
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Joined: 23 Feb 2004
Location: Rhode Island

PostPosted: 2005.05.04(Wed)15:41    Post subject: Clamped Fins Reply with quote

Posted - 05/04/2005 : 11:57:25
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Hi, in my 46gal bow tank I have 10 nickle size angels. They were all doing well yesterday until I did my water change. I did about a 40% water change and also changed the foam in my Aquaclear filter. After I was done, I noticed that the angels had clamped fins. Not totally clamped, but maybe halfway and I do not understand why. I am thinking I may have changed too much at once. My cories and algae eaters are doing fine. I changed my water in my other 2 tanks and there have been no problems. I fed them this morning and they all attacked the food. If they were shocked by water conditioner, will they get better within a couple of days?
I used to change 30% 2 times a week, but this time I changed 40% once a week. I never had a problem before. Should I do another 30% water change now or wait to see if they get better?

my parimeters are:

amm = 0.0
nitrite = 0.0
nitrate = 15.00
pH = 7.0
temp = 79.0

Maybe my nitrate changed to drastically? Please help!!
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Tim McDonnell
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Joined: 25 Nov 2003
Location: Earth

PostPosted: 2005.05.04(Wed)17:03    Post subject: Reply with quote

BINGO!!

Even before reading the nitrATE I thought that this is what it might be.

The nitrATE. It is too high. Lower it to 0 and things should go back to normal.

It is the same way with tiger barbs. Except they "stand" on their heads.

I would not do another water change. Wait for the fish to settle down. Hope that I helped!
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Habitat Loss: Species Loss: Our Loss
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benedictj
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Joined: 05 Dec 2004
Location: new york, ny

PostPosted: 2005.05.04(Wed)17:41    Post subject: Reply with quote

Tim McDonnell wrote:

The nitrATE. It is too high. Lower it to 0 and things should go back to normal.


There's no need to do any further water changes to lower your nitrate to zero. In fact, my guess is that the problem you're experiencing with your angels might be related to the water change.

Nitrates aren't toxic to fish below 40ppm, though optimally you'll want to keep them below 20 ppm. Levels higher then 20 can promote disease and infection. At 15 ppm, you're fine. But yeah, sure, if your nitrates were too high and you suddenly lowered them it could be stressful.

Still, it sounds as if your angels are experiencing stress related to the water change itself not the nitrates. Is there a large difference between the tank pH and your tap's pH? Was the temp difference between your tank and the tap water you added greater than 2 degrees farenheit? If so, that could be mildly stressing your angels, eventually it should go away as the temp adjusts or the pH reaches a medium. Still, keep an eye out for infections and ich, as the stress related to the water change probably has comprimised your fishes immune systems.
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Jake
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Slangl6238
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Joined: 23 Feb 2004
Location: Rhode Island

PostPosted: 2005.05.04(Wed)17:52    Post subject: Reply with quote

Thanks, I think it was too large of a water change and I added melafix as a precaution
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