11-30-2010, 03:58 PM
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Originally Posted by sailnut
<Any fish reacting negatively to a water change may be cause for concern>
It was not a profound response. It was something intangible about their activity which perhaps could be characterized as a very mild lethargy. This gave me concern. (all in comparison to their generally hyper activity)
In the event they were back to normal in an hour or so and apparently there is no residual. I am in New York City and we have excellent tap water. I made sure that the replacement water was within one degree of the tank (79F) and used Seachem declorineator and anti-stress at the suggested dosage.
The replacement water was added via ladling from the stainless steel container into the filter overflow via a 1 quart Pyrex measuring cup. For future changes I will let the replacement water sit overnight.
Interesting. Is this normal, at each water change? If so, it would suggest a difference in the water, which can be as obvious as pH/hardness, or perhaps heavy metals, nitrate, nitrite, ammonia in the water. Have you tested the water for ammonia, nitrite and nitrate? And have you checked the water supply website? There should be a breakdown of substances in the water and an indication of hardness and pH.
I change 50% of my tanks weekly, and I run the tap water straight into the tank (at approx the same temp), squirting the conditioner in after I start. Aside from common "annoyance" at having me crashing around in the tank, there is no adverse reaction.