My betta, on the day i got him, had perfect fins. A little tearing here and there from plastic plants(took them out IMMEDIATELY), but i've noticed that his anal fin is curled at the very end where it kinda makes a point. I thought "hmm.. he must be doing that himself" but its not him. I haven't seen him without his fin curled liek that. I made him flare(making his fins spread) and the end of his fin is still curled. Is this something to worry about or no? I do daily 100% water changes because he is in a 1.5 gallon tank without a filter(filter is in my 5.5G tank that is cycling).