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why does my betta fish keep going behind the filter

why does my betta fish keep going behind the filter
Information about animalssiamese fighting fish blueThis fish is quite hardy and will adapt to most aquarium circumstances. Like all other anabantoids their special ‘labyrinth organ’ makes it possible for them to live to tell the tale in oxygen depleted waters. Because of this they may be able to survive in smaller spaces. A minimum sized aquarium for a single specimen could be 3 gallons if kept in a warm room, and with average upkeep. They will do best although in a larger aquarium, with enough filtration and a heater, along with standard maintenance. A 10 gallon aquarium is recommended.