Bala Shark has white spot on top right next to top dorsal/fin - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources

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post #11 of 16 Old 09-23-2009, 10:05 PM Thread Starter
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Update - My tank has been cycled for a while now. I did my 3rd pwc change. This time about 25% pwc. I don't think that balla shark is gonna last much longer. It's going to sound stupid but it bothers me that he may not. He was the one I always liked just because hes 10x smaller then the other two. His white spot..I can't even say they are white spots. Its as if his scales are losing that silver metallic look. It's now appearing on his other side by his gills. He still swims but now hes swimming and "chillin" with the glass catfish in the corner of the tank under the water filter.

I also did a test, not sure if it was necessary but I wanted to do it so I can just know. While doing the PWC, on the last "pot of water" I took some water samples to see how the levels were out of the tap. pH was about a 6.4 and ammonium was at a 0 as well as nitrate, nitrite. I can't see the pH being a factor out of the tap into his condition? The pH in the tank is 7.0 - 7.4
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post #12 of 16 Old 09-24-2009, 12:26 AM Thread Starter
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If he makes it through the night, what can I do? I'm 25 years old, been in the Military, police, seen people die and everything else but everytime I look at the tank (to the right of my laptop) I see him and I feel horrible and like sh!t because he's not doing well. What can I do? Can I remove put him into one of those plastic holding tanks you see at fish stores? Keep it on the inside of that tank so he is at least secluded and I will be able to treat medically?
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post #13 of 16 Old 09-24-2009, 10:48 AM
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First on the water pH, if it is 6.4 out of the tap and 7.4 in the tank, something in the tank is adding mineral (probably calcium) to the water to raise it. This is not good. Normally this is caused by gravel or rocks, such as limestone, dolomite, coral, marble. If you have any of these in the tank you should remove them. The fish you list will be better in slightly acidic water in the mid-6 range. Fluctuating pH is very stressful on some fish. It may or may not be the cause of the problem with the one shark, but even if not it is certainly not going to help him.

The lobster may have a bearing; does it go after any of the fish?

Byron.

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 #14 of 16 Old 09-24-2009, 02:30 PM Thread Starter
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Quote:
Originally Posted by Byron View Post
First on the water pH, if it is 6.4 out of the tap and 7.4 in the tank, something in the tank is adding mineral (probably calcium) to the water to raise it. This is not good. Normally this is caused by gravel or rocks, such as limestone, dolomite, coral, marble. If you have any of these in the tank you should remove them. The fish you list will be better in slightly acidic water in the mid-6 range. Fluctuating pH is very stressful on some fish. It may or may not be the cause of the problem with the one shark, but even if not it is certainly not going to help him.

The lobster may have a bearing; does it go after any of the fish?

Byron.
Well. I was right. He didn't make it :(. I have regular blue gravel in there from the pet store that have been in there since I got the tank about 6 months ago. As far as the lobster is concerned he does not bother the fish at all unless they won't leave him alone. He lives with the pleco inside this log.
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post #15 of 16 Old 09-24-2009, 07:13 PM
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So sorry to hear the bala did not make it.
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post #16 of 16 Old 09-24-2009, 11:37 PM Thread Starter
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I'm actually blah about him dying. I thought he was going to be ok cuz I secluded him to the top of the tank so he did not have to struggle to stay up top..He was swimming around fine when I checked around 4am..

Why do fish die once its dark? They never die during the day. Well mine don't atleast. They always die during the night
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