I have used cleavers and magnesium+b6 to remove stones in patients. As well as combo you used with stone root and cornsilk also.
Chlorella and spirulina will not cause stones as they contain Mn which helps to reduce stone formation.
Saliva ph is ok in that range. Save stone and take to lab determine if oxalate or phosphate origin and balance body chemistry accordingly.Oxalic acid is a problem in cooked sources binding with Ca to form oxalate stones if MN=B6 are lacking in diet.Stones are always a lack of calcium in diet but which type of calcium?Have stone analysis.
Hot apple cider vinegar baths help.