Sudden deaths in Shrimp tank after planting

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clapperz

Feeder Fish
MFK Member
Oct 26, 2009
10
0
0
Berkshire
Hey,

This morning i had 2 armano, and 4 cherry shrimp, all perfectly and healthy cleaning away.
I decided i wanted to plant my tank, (a 35l arcadia arc tank) so i went out and bought some plants from my LFS.
I carefully planted some swords, java fern and a few unknowns. Doing so stirred up some of the JBL aquabasis substrate below my sand.
I then did a small water change, maybe 10-15%, with dechlorinated water.

2 hours later all the shrimp are dead, apart from one armano which is keeled over on one side looking like its trying to run a marathon.

What did i do wrong? Did the substrate poison them?

I'm baffled.

Thanks for any respone

Rob
 
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