RCS deaths, any insight?

was big water change involved? big temp and new water chemistry can stress them out and kill them.. i've lost 2 shrimp so far shortly after a big water change (50%)
 
I typically don't change any more than 30% at one time.

Posted on mobile.aquariacentral.com
 
By no means am I an expert like some of the others on the boards but I will offer my 2 cents.

I had a similar problem a while back in my RCS and CRS tanks. It took a while but I discovered what it was. gH and kH. A lot of folks measure gH but not kH. CRS of course are far more susceptible. Yes pH and temp are very important, but unless you are a brand new shrimper, you are cognizant of those.

The Prime treatments are good. Something else you could try that also made a huge difference for me was using RO or an RO/Tap mix. Prime cannot hope to purify every single thing in your tap water. You could also test for copper.

After banging my head up against the wall, I bought my own RO unit and use it exclusively except for my crays and my cardinal shrimp. The other 16 tanks get RO or an RO mix.

A lot of people question RO water usage, (I used to be one of them), but it's a lot easier to add what you need to water vs. taking it out.

I hope this provides some help. I mourn every shrimp I lose and know how you feel.
 
CichlidBob, I need more details on your kH/gH theory. What readings did you have before, or do you have in your straight-tap cray and cardinal tanks, and what readings do you get from your RO or RO-mix waters? Including pH...mine is very low and I'm wondering if that is part of the problem.

Are you trying to raise excessively low pH/gH/kH levels, or lower ones which are too high to be good for the shrimp? Or raise one and lower the others, or what?

And then what do you add to the RO or mix tanks to bring it to the correct levels?
 
I got into this hobby last year. I also have shrimps (pregnant ones) dying horribly while trying to molt. I recently switch to a 20 gallon from a 55 gallon tank. I don't know if my problems will be solved.

I also age my water for at least a week before water change. I got this huge (5 gallon jug????) from the supermarket that I keep tap water. My wife thinks I'm a nut. So, i'm going to use my 15 gallon tanks for the new tap water.

But, like Bob, I also sympathize the pain that you go thru. This is a thread that i will follow since i also share the same problem.

Thanks for the post.
 
Interesting. I've never measured gH or gH before as I've never found it necessary. To be honest, I don't really know what affect gH and kH levels.
 
I have disappearing RCS. I actually bought 30 of them form Crispino Ramos who posted earlier on this thread. They were in perfect condition when they showed up. I kept them in a quarantine tank for 2 days where they were crowded but happy. On the third morning I moved them to my main tank. They quickly went and hid in the thick grass I have on one side of my tank and looked happy all day. The next day only four were left, all of which are still doing fine two weeks later. There was no evidence of what happened. There are no shells no carcasses nothing. I don’t think they were eaten by the adult guppies or the amano shrimp because the grass is also home to numerous guppy fry, which are somewhat smaller and are doing just fine. Does anybody have any suggestions or thoughts?

Ryan
 
whats the water temp at? what are you feeding them? how often do you feed them? When i first set up my shrimp tank for some reason the first batch had a lot of shirmp die off and i don't know why but when i bought a second batch the shrimps handled just fine. maybe a bad batch? How many cories do you have in your tank? maybe they're causing stress?
 
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