could i keep a female betta alone in a 2.5 gal?

just wondering if she would get lonely not having a sorority? also, do the females have as much fin trouble as the males? about their tails splitting and what not? that is the main reason i am considering a female betta. the male i have now is always getting his fins hurt because they're so long & heavy. they always heal back but i feel so bad for him. i think that most time its the filter intake he gets too close to. i even put a sponge down in the intake pipe part but still parts of tail gets missing /split. idk, ive read some male bettas are biters too, kinda like ppl who r cutters, but ive nvr actually witnessed that behavior with mine. if the females are less prone to fin injury and are pretty much easy as males to care for then i prolly will only keep females in the future. thanks yall. brandy

his tank is filtered by a top mount one that came with the tank (aqueon brand 2.5 mini bow) i nvr change out the floss pad, just swish in old tank water. i have nvr used a heater cause our house stays 70 or above, and the tank stays aboit 72-75F. i cycled the tank with dr. tims one and only like 3 mos. ago. my readings are amm 0, ntri 0, ntra 40-80 API fredhwater master kit. i used to change 50% water once a week, but i thought it wasn't keeping his tank clean enough so now i do 100% once a week. when theres no more "floaters" when i stir up the gravels, i feel thats clean enough. idk, maybe it is fin rot but what more can you do. i already been adding 1 tsp aq. salt per gal to help his injuries heal, and nvr slack on water changes. i thought fin rot makes their fin edges appear black or red? usually if he gets hurt, his fins have clean "cuts" or solid pieces are just gone and its immediate, not gradual. however, on couple occasions, ive seen some mild rot after an injury (like the time he got trapped under the river stones substrate) everything i read about fin rot says it comes from not cleaning tank often enough or leaving one uncycled. and that clean water with some aq. salt supposedly cures it. i am new at this so any advice is greatly apprrciated. thanks. brandy

im pretty sure the culprit is the filter intake. i put a small piece of sponge in there but i had to leave a little bit of the intake open for the water to enter. still with the way it is now, the flow is greatly reduced as a result. as far as a heater goes, i just dont trust it not to burn him up (malfunction-wise)cause its only a 2.5 gal. plus i already heard horror stories from other ppl on this site. 72-75 is warm enough that he stays plenty active, unless it may be contributing to his injuries, i prolly wont add a heater unless he gets a bigger tank. i'll look for betta revive next time we go to knoxville cause its an hour drive away, and where nearest LFS is. thank u so much for the feedback. i believe that this will be the last male betta for me. do other ppl have this much trouble wiyh their male's fins?

do u think i should take the filter out and not use it?

ok hang on. im on a iphone. we dont have internet in the house

i cant find any instructions on how to upload photos with an iphone. do u know how bettafishmommy?

i used to have just a regular sponge cut small enough to fit in there. it wasnt treated with any chemicals like how some are to keep bacteria fr growin on it. tonight when i got home, i removed that sponge and inserted a piece of filter media floss stuff cut to fit. i been thinking about that all day since we corresponded earlier. this method works better, since now i can cover the entire opening of the intake, yet water can still flow through it. even the flow is the same as before with the sponge.