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Discussion Starter · #1 ·
I have had a planted Biorb Flow for about six months. For five of those months I've had six happy algae eating shrimp keeping things clean. No other fish in there. The tank is moderately planted with a piece of wood and my own rock instead of what comes with the Biorb which I thought was just ugly...anyway..When I make water changes, I've done about a fifty percent change (basically to get the tannins out of the water from the wood). I make the water changes about every three weeks. I've used water from my kitchen sink filter as we have softened water in the house, and our drinking water comes through a filtration system that is post softening. We just changed last week to a potassium tablet vs the salt we have had previously. I made the change yesterday, and this mroning all six japonica shrimp are very, very dead. I've had several planted tanks before, I dosed the water with AmQuel and the temperature of the water was fine...Was it the potassium that did it? They have never had a problem with any of the water changes previously. I can't find any articles that say potassium is a problem. Anyone have any insight? I had cleaned the filter about two weeks ago. All the test strips look within parameters too.
 

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Invert Warrior
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If whatever you dropped in the water had an amount of copper in it, that would do it.

But I am no detective. I would say whatever you changed your water to obviously killed the shrimp. Change it back and test again.


MABJ's iDevice used for this message :p
 

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It's the potassium water softener! I tried and tried to keep shrimp months ago and everything else I could keep alive, fish, snails, ghost shrimp, but not the cute little cherries or any other shrimp. Not to wash my hands and call myself a shrimp murderer, I got every test I could think of and some suggested!

After almost giving up I dug as deep as I could and found everyone else who used potassium water softeners couldn't keep dwarf shrimp. Basically they'll swim around like they are drunk, and then keel over and die.

I now use a 90% mix of R/O water and 10% nonsoftened tap with a small bit of prime to add in minerals, and usually a drop of shrimp minerals. I now have tons of shrimp babies, and no more mysterous deaths.

Your water softener won't kill fish or plants, but will sadly continue to murder dwarf shrimp.
 

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Discussion Starter · #4 ·
Elppan, thank you so much for this! I was hoping someone out there had had this experience. R/O it will be! I didn't think I would like just a shrimp tank, but they are kind of cool and do a good job of keeping the algae off the plants.
 

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Elppan, thank you so much for this! I was hoping someone out there had had this experience. R/O it will be! I didn't think I would like just a shrimp tank, but they are kind of cool and do a good job of keeping the algae off the plants.
No problem! After all the amounts of research I did to make sure I wasn't a
horrible murderer, I want to make sure no one else has the same problems.
 
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