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struggling to the surface

  1. Betta Fish Diseases and Emergencies
    Housing What size is your tank? Divided 20 gal What temperature is your tank? 78 degrees Does your tank have a filter? Yes - sponge filters Does your tank have an air stone or other type of aeration? Sponge filters Is your tank heated? Yes What tank mates does your betta fish live with? 2 large...