Mysterious simultaneous death of ALL apple snails in the tank - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 13 Old 03-03-2009, 02:48 PM
iamntbatman's Avatar
I don't think slightly overdosed water conditioner would do it. Is this the water conditioner you normally use, or did you switch brands? I also don't think any water conditioner would have copper in it, as many of them (like yours) are even designed to bind with heavy metals like copper to prevent them from harming your pets.

I would suspect copper in the water supply. You could bring a water sample to a LFS and have them test it for copper since copper test kits (at least here in the US) run about $10 a piece which is fairly expensive just to test one water parameter a couple of times. Unfortunately, copper is very lethal to invertebrates in even small doses, so even doing several water changes with copper-free water might not make your tank safe for invertebrates.

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post #12 of 13 Old 03-07-2009, 12:48 PM Thread Starter
Mirta's Avatar
Well, an overdose could have happened but not to a dangerous extent... The only difference actually between my home tanks and the tank at work is actually the water source. At work I take the water from a yellow tap which I think is copper. There is no other choice for me other than bring the water in big bottles...
Yes, I have used this conditioner before and there were no problems. But I do not often use the conditioner - only when I have to do a quick water changer with a large amount.
I decided not to bring any snails to the work tank yet, anyway, it is cold outside and snails will not like it.
I have also noticed that surface plants were not doing well in that work tank - looks like their petals get dry and some of them even die. Something is going on there. Surprisingly, but the fish feel great and greet me happily every Monday to be fed and talked to...:)

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post #13 of 13 Old 03-15-2009, 11:51 PM
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That many dead snails at one time could have caused the water parameters to get out of wack and might account for a dead fish.

As for the snails, I'm not sure. I wouldn't think it was the water conditioner. I've put more than the recommended amount in my WC and never had an issue with fish or invertebrates. Perhaps the water at your work is not good. I would try 2 30% or 2 50% (if their is a good amount of bacteria present in the gravel/filter media) WCs per week until it is stable again. Taking all the water out at once might cause a mini-cycle and you don't want to stress the fish you have any more than whatever is going on already has.

Sorry that you lost all your apples. Mine are special to my heart too.
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