Does anyone know what these lumps are on my beta and if I can heal them? He has them on both sides but the one side is notably larger. Due to moving, my beta spent 2 months with my mom getting 2-3 pellets a day and wasn't overly active due to minimal human interaction (tank was still frequently cleaned with a 30-50% water change each time). I thought at first he was fat and maybe bloated? I have since gotten him back and have been feeding ~2 freezer dried worms a day with one day feeding 2 pellets and 1 day fasting per week. He seems active and doesn't appear to struggle swimming and still has a very good appetite. I've had him for 1 year 7 months and he's in a heated, filtered, 3.5 gallon tank alone.