Question about Ick - Again

Mahma

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Dec 22, 2006
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Hello all,

I haven't posted (or lurked) much here in awhile. But you helped me tremendously with the last bout of ick, and we haven't seen any in 18 months! However...today's a new day.

Our isolation tank had four white-tipped tetras in it, and they were scheduled to move to the big tank in 5 more days. (I hold them in the iso tank for 6 wks. after purchase...since the LAST ick episode taught me well about ick!) This morning, one of the tetras was dead, and the other three had the infamous white spots.

So, I did a 40% water change immediately, throughly vacuumed the gravel, added some aquarium salt, and increased the heat by 2 degrees. (It's a 5 gallon tank, so I understand the total salt to be added is 10 tsp. I dissolved 10 tsp. in some externally-held tank water, added about 1/4 of that mixture, and will added the remainder gradually, over a 24 hour period, or so.)

My concern now is that another tetra is floating upside-down for 10-15 seconds, and then righting itself fow a few minutes, etc., and another tetra appears to be quite aggressive toward the third tetra, who appears the most normal of them all. Is this a function of the ick, playing itself out? Or is this a function of adding even the small amount of salt? (I am trying to do both the salt and the heat very gradually. And the water change, while it was a full 40%, wouldn't normally create either swim bladder problems, listlessness, or aggression, in my experience.)

Your thoughts, please? If the consensus is that the salt is a problem, I will go even more slowly with the salt. But my "gut" is telling me that the tetras were pretty sick upon my noticing the ick (which I did not notice yesterday at feeding time), and I fully expect to lose at least one more of the tetras....

TIA!
Mahma
 
What temperature is the tank now? You might try increasing the aeration a little bit. Good luck with your tetras!

Hi! The temp's at 77. The tank usually runs about 75. Increasing aeration is a really good idea. I don't have another pump for that. That's a thought, though. Perhaps I can get one. Thanks!

Mahma
 
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You could also drop the water line a little so that the surface disruption increases. I wouldn't expect that temperature to be causing issues though.
 
You could also drop the water line a little so that the surface disruption increases. I wouldn't expect that temperature to be causing issues though.

Another great idea! Thanks!
 
it could be the salt that you put in the tank. in such a small volume of water, the effects of water chemistry changes are amplified.

I'm kind of thinking that, too. With a small tank, even 2 tsp. of salt (or 2.5?) would probably be a shock. I thought I was only adding a bit, as it was diluted so much to begin with. And I was planning on going slowly with the rest. Perhaps I did too much salt for the beginning salt....

It's too late now, though. I hesitate to do much more water change, as I already did 40%. In such a small tank, I hesitate to do more. In hindsight, I suppose I should have kept it to 10-15% of the salt solution. What applied in the 30 G. tank doesn't apply here, I suppose.

Rats.

Thanks for your thoughts.
Mahma
 
Update: 2nd Dead Tetra

Well, the questionable one died. Now the question is...when do I add more salt?

Details:

1.) I diluted 10 tsp. of salt -- for the 5 g. tank -- and set it aside.

2.) 20-25% of the salted water -- 2-2.5 tsp. -- is already in the tank x 6 hours.

3.) Temp is 77, up from 75 this morning.

4.) Other two fish are behaving as they normally do.
 
Hi Mahma,
Sorry if this is after the fact, or just plain nonsense, but I have trouble with measures like spoonsful. Since I'm a novice and am concerned about ich, I looked to the empirical data and found refs to success by adding salt (in solution) at a rate of 1ppt/day to a peak concentration of 5ppt at 78deg f. After 5 days, or when the signs of the parasite are no longer present, water changes reducing the salinity by 1ppt/day can be undertaken.
I grew up with Imperial measure, but after 30 years of having to deal with our adoption of the metric system, I find it works well in these instances.
1000 grams/kilogram. A litre weighs 1KG. So, in the above example, 1g/litre.
I find this data reassuring to have. Good luck with controlling this horrible little critta!
Greg
 
Hey, I had the same deal with my Cardinals a few weeks back.

As soon as I added salt to the tank (20 gallon, I added half a cup of saltwater) one of my cardinals starting hanging out near the surface, sometimes flipped over.

I ended up losing half the population of cardinals, always the ones who flipped over and hung out at the top. I think its the saltshock and the stress from the ich.

Just wanted to know that you are not alone in this!!
 
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