Also, do y'all want to see cat picks?

I am also still open to answering and and all questions about Bettas and such to the best of my ability.

My boy Reginald is a dumbo half moon and his fins have been looking more “ratty” over time. I’ve had him for almost two years now, and his tail looks much stringier than when I first got him.

Here is when I first got him:

And here is a picture I took of his tail today:

I’m worried that he’s fin biting, or maybe even has fin rot. What do you guys think?

so I have a male betta who i’ve had for about a year and he will like. Not stop biting his tail. every time his tail gets long and beautiful he decides he hates it and he destroys it within a week. it’s never caused him any problems and he is still able to swim/eat/etc. so i’m assuming this is really just a cosmetic thing.

so I was wondering if there are any tips/tricks concerning fin biting? he’s in a 5 gallon tank and ideally I wouldn’t move him unless it’s really necessary. but i’m just wondering if anyone has figured out any way to get bettas to stop doing this. he REALLY likes people and whenever anyone is in the room with him he will swim around and i’ve never seen him bite himself then, so I assume he’s doing it when no one is around (maybe a boredom thing ?).

My roommates got a Betta fish, and the water's real cloudy and I'm not sure what to do. They also said this was a five gallon bowl and I don't think it is, it looks way too small. I'm starting to get worried for the little guy, am I just being paranoid or should I get him a better tank and stuff?

HE WAS FINE AN HOUR AGO

There a scale missing on the side of Bilbo’s had and I don’t know what could have happened?? He was fine like 2 hours ago when I fed him some bloodworms, tanks heated and filtered, no signs anything’s wrong?? Just a little pinkish mark where it looks like a scale fell off?? The filter flow is a bit high rn could it have knocked him into the rock?? One of the shrimp could have attacked him but thats extremely unlikely. I think the filter might have knocked him into the rock. Will he be ok?? Should I add anything?? Besides more water of course 

i noticed that my lil guy chad has had a VERY noticable underbite compared to when i first got him, so i wanted to know if any of you have experienced this, and if it is healthy for him!

here is when i got chad about 6 months ago:

and here is chad today:

is this normal for bettas ?

I'm a new fish parent, recently got a betta and I'm loving having him around, but I'm wanting to upgrade his setup as there's a number of things with his current tank I'm not super happy with. It's a 3.5 gallon, heated and filtered but it's kind of a weird half moon shape that I think might be stressing the fish a bit? I'm also having a hard time figuring out how to get him enough plant cover without overly limiting his free space.

I feel dumb for going with a tank like that to begin with and I'm wanting to do better by him and get him a good ol rectangular tank.

Would it be better to go with a 5 or a 10 gallon? I'm not sure what size is really best for them and I'd like to not have to upgrade a third time right away if I can avoid it.