My betta has been a bit off for a few weeks now, he likes to rest ontop of the filter output close to the surface and has been there almost constantly for 3 weeks now.
I have tried general tonic and adding salt but nothing seems to help him. He has no visible symptoms.
He will get off the filter output when I am around the tank but when I feed him he tries to eat the pellets but cant seem to eat them. They are the same pellets he has been eating since I got him 6 months ago. He will try and take them off the surface but I dont know if he cant open his mouth wide enough or there is something else wrong with his mouth, if he does manage to get one in his mouth he often struggles to swallow it and spits it out - then he will try and eat it again!
I dont know whats wrong with my poor little man! :( if anyone has any ideas, please help me?