My betta has built his 3rd bubble nest in 2 weeks. I had to add water to his 5 gallon tank and disrupted his nest. He quickly gathered his loosened bubbles and replaced them back in the nest. (I’m sure that’s a sign of good paternal skills) Now he appears to be despondent and lays on his leaf hammock with his back to everyone and his nose to the corner of the tank. Even his 2 guppy tank mates seem to have noticed he’s not his usual attentive self. I‘m tempted to place a female in the tank to remedy the situation or remove him to a 3.5 gallon of his own for a change of scenery ( more of a distraction), what shall I do? BTW, He is still eating but doesn’t have his voracious appetite like he used to.