All shrimps die within a day of being put into my tank
I made a new scape about 5 months ago. All equipment is the same as the previous scape. Amanos and cherries thrived in the last one.
When I put my old amanos that were housed in a small tank while I rescaped into the new scape, they all died within a day. I thought I had done something terribly wrong. Fish were fine.
Fast forward a month and I bought crystal shrimp. Fish, plants and parameters had been fine since the start of the new scape. All shrimp were dead the next day.
Fast forward to yesterday. I got a couple cherry shrimp to test again. They died.
I've been dripping them 4-6 hours each. The old setup was fine, and I've dripped plenty of shrimp for my wife's tank in the meantime successfully.
I'm at a loss. The only thing different in the tank this time around is power sand, volcanic rock and driftwood (branchwood).
Parameters are the same. Kh and gh are slightly lower due to the absence of seiryu stone but I put in gh and kh. Same salt ferts. Same ph and co2 drop. Plants and fish are thriving.
What is going on???