Really 3 goldfish ( Medium Size) is Maxium for a 20 gallon aquarium. In my opinion goldfish need at least 10 gallons each. Also goldfish are coldwater fish so you can't add tropica fish such as mollies, angels, etc with them. Really there isint much that can go with goldfish......Sorry!



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Anyway, you are correct about the neon tetras. I've been in freshwater SO much longer than salt. I have a fully live planted tank with all sorts of community fish. And all I can say is I will not get the neon tetras again. I had the "neon tetra disease" occur and it is very frustrating to say the least. They are not the hardiest fish by far. But everything that Ninong suggested is great for fw. And cory cats are SO cool! There are so many varieties. Also, I have some thin finned rainbows that are gorgeous and very docile. I haven't located that scientific name, but they would be great for you. They are small. Very colorful though.


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