My Cherry Shrimp Died!

[dingweding]

I had my cherry shrimps for a few weeks, they seems very active and happy. Some become very red and carry eggs. But last weekend i changed water. You know i am lazy, i put cold water directly in the tank water. I know it not good, but i did it very careful to sure there is no any fish or shrimp is close to where the new water came in. and i have done that many many time.


However, yesterday morning, i found 3 dead shrimp there, there are 3 or 4 still hanging around. i did not know the rest shrimp died or hide somewhere.


did this cause by the water change or sth else?

 

[iSnail]

Was the water temperature very different from tank temperature? Did you use dechlorinator before adding the new water? Have you checked your water stats - Ammonia & Nitrites?? Shrimps are very sensitive to Ammonia and Nitrites. They are more likely to die of poisoning than a couple of degrees of temperature difference.

Also, are you sure they are not just shrimp moults?

 

[dingweding]

Was the water temperature very different from tank temperature? Did you use dechlorinator before adding the new water? Have you checked your water stats - Ammonia & Nitrites?? Shrimps are very sensitive to Ammonia and Nitrites. They are more likely to die of poisoning than a couple of degrees of temperature difference.

Also, are you sure they are not just shrimp moults?

the new water is very cold tap water, directly from the tap. i know it is not good, since i kept fish more than 10 years now, i know i have to reduce the temperature difference etc, but i just do it very careful, and it is only just less than 20% water, never had problem b4.


you think the reason is because i did not dechlorinate the water? btw, i did put the water in my water filter first, that kind filter to purify the drinking water, and then put in the tank, because i hope it can get rid of heavy metal in my water if there are some.

 

[iSnail]

Do you mean the filter jug type?? Is that your normal water change method? I don't know much about those type of filter but I seem to have read it somewhere that the mechanism it does the filtering is not suitable for aquarium use. Don't quote me on this . Perhaps someone can give more info? Also, those filter cartridges have to be changed very regularly to avoid nasty stuff getting dumped back into the water from the spent cartridges.

 

[dingweding]

Do you mean the filter jug type?? Is that your normal water change method? I don't know much about those type of filter but I seem to have read it somewhere that the mechanism it does the filtering is not suitable for aquarium use. Don't quote me on this . Perhaps someone can give more info? Also, those filter cartridges have to be changed very regularly to avoid nasty stuff getting dumped back into the water from the spent cartridges.

Yes i do mean the filter jug. I also heard from my friend keeping discus said, it does not make any difference to the water, so useless. However, i always use tap water directly for water change, just be careful to do a little a time, never had problem.
For shrimp, because they are sensitive, so i use the jug first.


I do not know it is caused by the water change, because the shirmp was there for a few weeks now, and i changed water a few time, they never died. However this time, after i change it, i immediately found 3 dead body. and i guess there are some more died somewhere else i can not see. However, those two pregant amaon shrimp are still healthy. And today i found 4 cherry shrimp still alive. Hope they will survive.

 

[iSnail]

I find Amanos are a lot tougher than cherries My amanos have been in my Dwarf Puffer tank ever since I bought them a year and a half ago. Shame that they don't reproduce like cherries

Perhaps you should just use dechlorinator and water straight from the tap. I didn't have any problems using tap water when I had my cherries. Hope your remaining shrimps survive and breed. Good luck

 

[xxBarneyxx]

I have been doing water changes on the tank with my cherry shrimp straight from the cold tap with no problems (for about 5 months now). If the temp drop was only a couple of degrees I cant see it being a problem. My method is to drain water, put dechlorinator in, fill back up with cold water. I used to always use water that is the same temperature but I have been using this method for a good 5 months now with no issues (shrimp and fish are all breeding).

Did you do any tests for ammonia or nitrite? I would guess something may have caused a slight spike which shrimp are pretty sensitive too.

 

[dingweding]

i test the water, it is fine. nitrate almost zero. But i did not put any dechlorinator when i change the water.

Actually i never put it for years, ofcourse that is for the fish tank. Maybe is this the problem for shrimp?