:1zhelp:My lil bro had a carnival at his school where they gave away free feeder goldfish and well my lil bro now has one in a jar. I think it sucks the jar is only slightly filled and well no filter. Reading a post by lupid on another thread and it says 10-15gal per fancy type 20 for pond types and that is by no means enough for them as they need companions since there social creatures. So my question is as a person who is trying to be a responsible fish owner what should I do??? Not much i can do financially since my own tanks need to be upgraded. So what should I do???