What do you mean you can't take him to the vet?
Theres no vet for sugar glider in Singapore
What kind of liquid vitamin?
Just the normal one that add to drinking water,Multi Vitamin
How long have you had your glider?
For abt 5day
Is there direct air flowing on them and what temperature do you keep your house at?
Theres direct air flow, ABT 27 Degree
What are you feeding and what type of bedding do you use?
I feed Fruits and meal worm, No bedding
Hissing is normal usually. What does it sound like? Does it sound like a dry hiss or a spitting hiss? Does it sound like a cough? Does it sound like he has phlegm in his throat? Does the hiss rattle? Does he weeze?
I dont really know ita a dry hiss or a spitting hiss, its seem to its weezing
How long has this been going on?
Since i got them
erm.... can anyone help??