Tropical Fish Keeping - Aquarium fish care and resources

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excal88 08-17-2011 06:03 AM

cherry shrimp dying, help!
Hey guys, had a few questions pertaining to the title of the thread. In my 26 gallon tank *has been established for almost 3 months now* I have quite a few cherry red shrimp. However, whenever I do a water change *10-15%* some of the shrimp die. I just did a 20% change a few days ago, and I just picked out 10 dead shrimp :( I used RO/DI water I bought from the store, added in some ultimate water treatment, let it sit in a bucket for about 30 minutes, and then added it. And now my shrimp are dying slowly :( My water parameters are all green * ammonia 0, nitrite 0* save nitrates, which are a bit higher, at 30-40 ppm *which was the reason of me doing the water change; it was actually higher before, but none of the shrimp died* I also tried letting the new water adjust to room temperature as to not do a temp shock of the tank. My pH is around 6.0-6.4, and the water that I add is at pH 6.8-7.2, so I'm pretty sure I'm not doing a pH shock either. When I add in the water, I pour it in slowly, and not all at once. Anyone have any ideas? I'm pretty bummed out as my shrimp are fun to watch, and it hurts having to pick em out one by one :( And no, they were not molting/molted shells that I saw; they were red, and turned pinkish or white. Thanks!

kitten_penang 08-17-2011 09:19 AM

theres no need for the ultimate water treatment for ro water coz theres nothing to's pure h2o. try adding some water from the pipe to the ro then add some ultimate water treatment.pure h2o is too harsh for any living creature.

excal88 08-17-2011 11:43 AM

Ok, I'll try mixing in tap water with the RO/DI water. Should I break down the water changes into smaller amounts? I usually only do 4-5 gallons at a time, but maybe less now?

redchigh 08-17-2011 12:34 PM

Yep, try smaller amounts.... Also, don't forget the dechlorinator. Are you sure they die after the wc, or could they be dead and hiding, and the current from the WC blows them out?

I would also be suspicious of the bucket.

excal88 08-17-2011 02:24 PM

No, they die after the water change. The bucket I use has been the same one I used since I started the tank, so I doubt something happened to it. The temp did drop 2 degrees or so, but that shouldn't have caused enough of a change, would it?

kitten_penang 08-19-2011 10:47 AM

well since you din't use the bucket with anything else the ro is the problem. 1/9 should be a good mix

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