In that case, Int "Low" translates to 5-7.
Mental scores for other sentient oozes...
Assassin Jelly: Int 10, Wis 14, Cha 1
Slime Creature: Int 3, Wis 10, Cha 1
Slithering Tracker: Int 10, Wis 15, Cha 6
Summoning Ooze: Int 10, Wis 12, Cha 14
Conflagration Ooze: Int 9, Wis 12, Cha 13
Cesspit Ooze: Int 7, Wis 11, Cha 10