Help!!!!! Strange unusual betta behavior
I have had a betta fish for about a year.
About 3 or 4 months ago, I planted his tank.
He seemed very happy and content with his home.
Everyday he would swim up to me, follow my fingers, and jump for food.
However, just today, my betta is just not being himself.
He floats in a corner barely moving at all. He is sometimes on his side but that's while hes on a leaf or something. His stomach is slightly puffed out but it has been like that. Can you guys please help me!?!?!
Is this life threatening for the betta? What can I do to help him?!?!?!?
BTW I got some duckweed about 2 days ago.
It covers the surface and it seems like it was taking up space for him to breathe.
Also, the betta randomly swims extremely fast bumps in to something and just floats.
The tank is 5.5 gallons moderately-heavily planted, and there is an otocinclus in there (I plan to get 1 or 2 more. This is only a temporary home for the otos)