The results of observation of plasmoids that were formed during periodic discharge in a flow of liquid, in particular, water, in its surrounding space during discharge and in post-discharge, have been presented. The presence of long-lived luminous formations not only in the air, but also on the surface and above the surface of nearby objects has been noted. The reasons for the appearance of such objects and their properties, which have features not only of macro-, but also micro-objects, such as Dirac’s monopole, have been analyzed.