micro bubbles help!!!!

[inspector]

Hi everyone,I need help getting rid of micro bubbles.I just filled my 72gal bowfront tank with a 30 gal sump.the tank has a corner overflow the sump is 4ft long the pump is a little giant 4mdsqx external.i don't know if it will get better when i add caulerpa to the sump and rock in the tank.if anyone has any ideas please let me know thanks Paul