Lake Matano

pH 8,5
TDS 88
GH 1
KH 5-6

Lake Poso

pH 8,3
TDS – 92
GH 1
KH 4-5

Lake Towuti

pH: 8,3
GH: 6
KH: 5-6
TDS: 181

(Source: joydiv in shrimpnow, data taken in 2008)

Popularity: 3%