So I am looking into getting a new tank and not sure what to get. I currently have a 20gal tank with angelfish a betta and some tetras but I want something different. I have been thinking about getting an oscar tank but the only problem is I don't have enough room for a big tank. about the biggest i can get is 20gal. The reason why i would like oscars is cause they eat gold fish which i think would be cool to watch. I have also thought about breeding guppies but i don't know if i want a tank with just guppies and what do i do if i get overan with guppies cause what would i do with them. So those are my thoughts let me know if you have any cool ideas for a fish tank that would be fun.