Constipation and no Appetite

[splendenfighter38]

i am new to this thread, but have years of betta expertise and this is one thing i cant seem to figure out, I am unsure of my betta Crowntail's age or whether or not he is a plakat but that is besides the point, how do i get his appetite goin and cure the constipation?

Some Factors for this Betta Are:
Age
Got him yesterday
Diagnosis
Tank Size (in a tank i had four other bettas in, and it worked out fine)

[mollis]

I am not an expert. but! I've been googling betta illnesses for about 2 days now to try to find out what mine is suffering from. I found that with a constipated betta you should take a frozen pea, defrost it, and cut it into tiny pieces and then feed the betta a piece.

[Lupin]

Fasting works just fine. A fish can do well without food for a week or two.

[dramaqueen]

After fasting, try feeding some daphnia.

[Luchi]

If he's constipated don't feed him, however, if you just got him it may take a few days to get his appetite going.