You have a mix of community fish there. Most of which like to live in schools of 6-10. The tetras are tropical fish that typically like lower pH and softer water. The platy and barbs tend to like slightly harder water and higher pH.

The tiger barbs can become aggressive and territorial. The goldfish and minnow are not tropical fish. They can live in colder water, and the goldfish can get pretty big, and cosume alot of food and make a lot of waste. The plecos, depending on the species can also get really big...bigger than angelfish. ;)

You may want to ask yourself what kind of tank you want to have for the long run, and what kind of equipment you have to take care of them (filter size, heaters...etc).


EDIT...LOL, looks like susan and I have similar answers, but she beat me to it.

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--->Pictures of my 75g Amazon tank<----