Mollies are not suited to small or overcrowded tanks but are usually fairly durable as long as the aquarium is maintained. The pH and hardness should both be kept on the higher end. If the pH swings too low due to pollution, the Molly will suffer greatly. The tank should have regular water changes of 25% every 2 -4 weeks. It will need more or less depending on how many fish there are and the condition of the water.

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​This fish can be housed with fish of similar temperament and size that have the same water chemistry requirements. Many aquarists choose to keep it with its relatives, Guppies Tetras and other Characins.