Why is my unsullied Lionhead Goldfish Sad? What should I do?

I bought him today and put him with 2 other oranda fish in the cistern. Everything was okay at first but later on it seems the two oranda turn their posterior on him and he sinks to the bottom looking sad. Looks like he wants to form friends but they don't want to. Is it because they are different breeds. What should I do? Buy another lionhead?
First of all be paid sure you acclimatized the fish properly. New fish will hide and often sulk for a few days after introduction, however hold offering food and eventually he will settle into his new environment.
Your fish is fairly new to the tank. Watch out whether it's sick or have gotten sick...sinking to the bottom is not normal unless it is resting.
draw from him a friend!
Yes i think you should get another.
That will boost up the confidence, and loneliness will be gone
Answers:    Hi m.,
A new fish has to become acclimated and socialized to his new domestic and tank mates. After a couple of days he'll feel more at domestic and the others will be more comfortable with him too. Goldfish are sociable and get along well near each other.
But if he continues to sink to the bottom, that's not a good sign and you might want to quarantine him whether he looks ill. If he's sick, adding aquarium salt by following the directions on the collection will help him recover.
I hope all your goldfish are doing okay soon.

Regards,
David
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