Here are two scripts that blank ARP trafic and log the arp trafic. You have to scheduled the scripts.
# Script1
/ip arp print file=mauro;
:local i [/ip arp print count-only];
:for a from=0 to=($i - 2) do={:log [/ip arp print $a ]
# Script2
/ip arp print file=mauro;
:local i [/ip arp print count-only];
:for a from= 0 to=($i - 2) do={[/ip arp remove $i]}
Credit: https://wiki.mikrotik.com/wiki/Delete_ARP_trafic_for_arp_table