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Re: Water change=dead fish.....
It's likely your water contains chloramine (currently mandated nearly
everywhere by the EPA). Using the wrong dechlor product can release a burst
of ammonia. If the pH is much above 7, that's deadly in nearly any
measurable amount. You should never, ever be able to detect the slightest
trace of ammonia.
There are all kinds of other possible causes, but barring any real disease
symptoms, I'd bet it was because you didn't use "Amquel" or "Prime" or "Ammo
Lock 2" or equivalent, and they died from ammonia poisoning from such a
large percentage change.
Wright
Rawlin Potter wrote:
>
> I am sitting here pondering what I did wrong in making a 50% water
> change to a 10 gallon tank that resulted in the deaths of a large male
> "Blue Gularis" and his female tank companions. I made the change due to
> amount of dead brine shrimp left in the bottom of the tank from the last
> three days of feeding.
>
> The tank has an undergravel filter, gravel of course, two risers, live
> plants.....
>
> I have read and thought I heeded all the horror stories I have read
> about water changes and fish loss but alas, I am in the same boat. This
> has never happened to me before today.
>
> I was very cautious about cleaning and rinsing the siphon, the container
> that held the water to be added. I did not use soap but just hot tap
> water and rinse the two items. I made sure I verified that the
> temperature of the water added back in was the same as the water
> removed. I used a product called "Super Chlor" to remove the chlorine.
> I returned home 8 hours later and found them dead. I fed the live brine
> from a batch that I have been using since Thursday and the brine are
> alive and well and still swimming around in the tank. One female was
> barely alive when I returned and I did not notice an redness around the
> gills. She later died. The water smells just fine and ammonia levels are
> in the correct range for just being after a water change. The water is
> extremely hard water. The Ph was in the correct range. I am still
> scratching my head. All I can think of is that the dechlorinated lost
> it's efficacy.......I don't know...any suggestions?
>
> ---------------
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--
Wright Huntley, Fremont CA, USA, 510 494-8679 huntleyone at home dot com
"DEMOCRACY" is two wolves and a lamb voting on lunch.
"LIBERTY" is a well-armed lamb denying enforcement of the vote.
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