One of my bettas is obsessed with the inside of the filter. I thought he was inadvertently getting sucked into the filter until I saw him actually swim into the opening slot several times. I’m concerned why he keeps doing that. I put a sponge insert into the opening to keep him out… anyone else experienced this?
ine did it but would get caught in the bottom tube n u could see his tail stick out he did like 3 times i put a sponge on it an he forced himself though the bottom of sponge so i removed him from tank all together cause he didnt stop n he lost some scales on the top of his body i had to put him back in a 2 gal. Bowel i was afraid of him hurting hisself more he does better n his bowel than tank n he much more happier n he healed up quick n good ty god!