36 inches tank

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    Is 36 Inches Fish Tank Enough For These Fishes?

    I am planning to buy an aquarium for following fishes:   3 Red tailed black variatus ( 3 inches each) 3 Balloon belly molly (3 inches each) 3 Glofish (2 inches each)   Is 36 inches tank enough (40 gallons enough), considering I have to decorate the tank with plants and other assortments? The...