Hi, I had PMed you. In case you did not rec, you may contact ACRES wildlife rescue @ 65 97837782 (24 Hrs)
OR Singapore Zoological Garden where they have a dept for tortoises.
I am just south from him. all my adults and hatchling (Indian stars) are not eating as much too. I was thinking it could have been the haze from Indonesia's forest fire. I had this problem 2 years ago when the haze level was very unhealthy. Just my guess. I am watching my little ones very closely.
I feed my with greens I get from wet market, grass from road sides, Sup with ZooMed Grassland tort food and calcium from pet shops (Animal Kingdom, pet lovers ...ETC)
I am not able to get Mazuri LS.
Leno, with more then 200 days of rain a year, We have humility above 80 all year round, remove the lamp that dry the enclosure and more natural sun. We are located 1 degree north of the equator, definitely more then enough sunlight for your torts,