Aqueon Betta Bowl Aquarium Kit in Black Low-maintenance, economical kit to get you started Half gallon betta aquarium includes divider for housing up to two betta per aquarium Easy-open feeding door allows for feeding betta without taking the entire lid off Aquarium plant, gravel, and samples of food & water care included! Aqueon Mini Heater or Flat Heater recommended Change water weekly to keep betta healthy