Beta Tottoro IV was the inhabited fourth planet of the Beta Tottoro system. The inhabitants of this world had maintained kelp farms for decades. Sometime, in the past, the farmers had used saltzgadum, but this practice was discontinued due to cost. (TNG: "Hollow Pursuits", display graphic)
This planet was mentioned in an okudagram which listed and described five substances that had the potential to cause disruptions in the systems aboard a Federation starship.