Beltrami County continues to monitor for invasive algae in area lakes. Some experts fear that Starry Stonewort will grow before the summer’s over. Starry Stonewort wasn’t confirmed in Minnesota until 2015, and since then, it has begun to turn up in more and more bodies of water. It begins growing around mid June and can reach up to 6 inches to a foot below the waters surface. While it’s a threat to any one of the state’s 10,000-plus lakes, it’s hit Beltrami County a little harder than most. Moose Lake is said to have been hit the worst.