Checked on my fish tanks this morning to find that my Betta fish had built a huge bubble nest. Overnight. It certainly wasn’t there last night….But look at it now! He has sort of built these nests in his old tank but never at this scale- it was usually nothing more than a small clump of bubbles. Look at this thing though! I’m a little taken aback by the size of this, and the timescale of it (overnight!!). I’m taking this as a sign he really likes his new tank.
(Technically this is a breeding behaviour ingrained into the fish. They build these nests to keep the eggs in and keep said eggs oxygenated – yes, the males look after the eggs. According to some websites, Bettas will build these even in sub par conditions as it is such an instinctive behaviour. But then other websites say they’ll only build them if comfortable and happy. So who knows, really…the internet is a confusing place for research. I should probably buy a book or go the library…easier to Google though! 😅 )