I am trying to remember a live-action show or miniseries I saw in Russia in the late 80s. The show was being translated from another language, most likely French. It could have also been a multi part movie. Russian TV was often confusing with that. Being shown in Russia may mean that the show was also old, but it had to be popular enough to import.
In it a family, parents and kids, ends up with a group of colorful slimes. The slimes were some sort of simple special effects, and mostly communicated through just shapes in their petri dishes. The show would often show them bubbling up and down. The slimes were maybe about the size of a baseball each, and usually stayed in place.
The show's main hijinks were about the lab or government or something trying to get the slimes back.
The slimes had electrical powers. They could absorb electricity and do things with it, a fact that would often save the day. There were often shots in the show of electricity arching between all the slimes.
The show was family programming. It was not a comedy, and had some tense moments about bad things happening to the slimes, but was always kid friendly.