Bubble nest...... run out of puff?

[boxman]

My male betta has stopped making bubble nests over the last week - I'm due a water change, would this be a sign that he's not overly happy?

I haven't been overfeeding and the chemical levels are pretty good (slightly high nitrate - using RO water which was used by the LFS)

 

[SPLiSH]

Some people believe rain stimulates bettas to breed... has it been raining in your area, then stopped? That might explain it. Or maybe he just isn't in a bubblenesting mood. I mean, there must be TONS of bubbles in a nest and bettas blow each of these individually... maybe he's just having a break. )

 

[Tokis-Phoenix]

What size tank is he in and is it cycled and how much water do you take out in your waters changes on average?