The goldfish tank is 55 gallons with 3, 5.5 inch comets and my other weather loach, Bruce. (6-7 inches, probably a girl too.

Will the 20 be okay for them for a few months? If so...
Should I get them some dither friends, or just let them settle in? They seem awful nervous and hidey at the moment.
And do you think they'll be okay in that goldfish tank later on?
Thanks much in advance. I'm not big on posting, but I read LOL all the time, and will pretty much do what you guys recomend.