coral banded shrimp and common shrimp

[Int3lSketch]

coral banded shrimp and common shrimp
so i brought a coral banded shrimp and (what i beleive to be) a standard shrimp yesterday from LFS
came home today and both seem to have died, my tank has been running for 5 weeks now
my perameters are all okay, 0 amm 0 nitirite 0nitrate
mg is low at 1200 (waiting on dosing supps) alk at 7.4 dkh 0 phos calc at 440ppm

question is what could have happened to them? all my corals are fine and healthy. the coral band might ave just malted as it seemed the shell was empty, the other shrimp however seemed full if thats the right way to put it.


should add i used cycled rock and live sand to start the tank. ive been questioning the 0 nitrate for the past 2 weeks, brought new tests ect. even put a raw prawn in and it dissappeared quickly. been feeding my trachy corals raw prawns aswel

 

[SeaCucumberFan]

What is "standard shrimp"? The CBS probably killed the "standard shrimp"

 

[Bongo Shrimp]

What is "standard shrimp"? The CBS probably killed the "standard shrimp"

I don't think you can assume this based on the information provided. Especially since both died.

 

[snorvich]

I don't think you can assume this based on the information provided. Especially since both died.

This. Sounds like purchase may have been premature. Five weeks is too soon for corals, and acclimation may have been faulty as well.