Zfs send & receive problem

I can't make ZFS send/ receive work. I want to send a snapshot of an existing pool to a new pool on the same machine.

I have an existing working install of OMV 5.5.17-2 with kernel 5.3 18.3-pve and the ZFS plugin. Everything is up to date. I have snapshot of my pool and want to send it to my new pool but the send/receive command says

sudo zfs send -Rv tank2/media/music@201124 | zfs receive -Fv tank/media/music
bash: zfs: command not found

However 'sudo zfs get all tank' does work: 'zfs' is found and the command returns the properties of 'tank'. So why does send/ receive fail?

@ryecoaaron. Thanks. I thought that I had tried adding sudo after the pipe and that it didn't help but I just tried again and of course it worked… Thanks again.