How do I keep my molly fish happy?

You keep your molly fish happy by:

  • Providing around three gallons of water for each molly fish
  • Keeping them in a small group of at least four fish
  • Cleaning the tank regularly
  • Changing 20% of the water each week
  • Providing them with a calm environment
  • Avoiding keeping them with aggressive tank mates
  • Feeding them an omnivorous diet consisting of high-quality flakes, live foods, and vegetables
  • Maintaining the water temperature around 72°F to 78°F (22.2°C to 25.5°C)
  • Providing plenty of decorations, plants, and hiding spots
  • Getting a strong filtration system, standard tank lighting, and a heater