Shrimp for Cycling shell on or off?

[tmcpeek]

Do I leave them in the shells or remove the shells. Also how many would I need for a 225 gallon tank. Only has base rock in it now. Want to get a cycle started to try and eliminate too much dieoff when I can afford to purchase my liverock from lr.com.

 

[EL Diablo]

I dont think it matters if the shell is on or off.
your looking for the dead shrimp to decompose, which it will do no matter what.

 

[MACATUA]

yea, no matter, might wanna leave the shell to keep it together a bit