Dwarf and GOlden Gouramis

Question
I have a 5 gallon tank. And i have 4 small guppies, 2 black molly, 1 silver molly and 1 dwarf and 1 golden Gouramis. When i put the golden Gourami in the tank he started chasing and fin nipping i guess the dwarf. I don't know what to do. Retrun the golden or keep him and wait to see what  happens. ? I would like a lively and colorful tank. Thanks :D

Answer
Hi

Gouramis are really hard to keep when they are mature , they start to be a little aggressive with other gouramis , so you may change one of them and bring another similar type , to keep golden with blue or opalen is ok , to keep only dwarf is also ok , to keep kissing only also ok , but do not mix mature gouramis with different types , even from the same family but they will not accept each other .