Why does my pleco keep floating?

If your pleco is floating, it could be due to swim bladder issues, which can result from overfeeding, poor water quality, or stress. Additionally, if it's not able to regulate its buoyancy properly, it may be trapped air in its digestive system. Ensure your pleco has a balanced diet, monitor water conditions, and consider reducing feeding to see if the behavior improves. If the problem persists, consult an aquarium specialist or veterinarian.