Hi everyone, I'm new here on bettafish, and I'm also the new owner of a female betta. I'm coming here seeking advice, because I have noticed some odd behavior from my betta and would like to see if I am being paranoid if she actually has an issue.
Housing
What size is your tank? 1 gal
What temperature is your tank? Not sure.

Does your tank have a filter? No, but I do keep a lamp on shining on the tank.
Does your tank have an air stone or other type of aeration? No
Is your tank heated? No
What tank mates does your betta fish live with? None
Food
What type of food do you feed your betta fish? Hikari Betta Bio-Gold
How often do you feed your betta fish? 1-2 Pellets a day
Maintenance
How often do you perform a water change? Weekly
What percentage of the water do you change when you perform a water change? 50%
What type of additives do you add to the water when you perform a water change? A water conditioner, I don't remember the name..
I haven't actually changed the water yet, as I just got my beta a few days ago.
Water Parameters:
Have you tested your water? If so, what are the following parameters?
I have not tested the water
Symptoms and Treatment
How has your betta fish's appearance changed?
Her physcial appearance looks okay.
How has your betta fish's behavior changed?
She seems to float to the top of the tank against her will.
When did you start noticing the symptoms?
I just got her a couple days ago, but I really started noticing she could not stay at the bottom of the tank for long yester day
Have you started treating your fish? If so, how?
I have done a bit of research and found she may have a swim bladder disorder. I fed her a tiny bit of green pea this morning as I hear it's a good laxative for bettas. I figure she'd like the treat whether or not she's actually sick.
Does your fish have any history of being ill? Not sure, just got her
How old is your fish (approximately)? Don't know.
----
I just got my betta Saturday night, and yesterday I noticed her behavior probably isn't normal for a betta.
I noticed her tail started rising upwards when she was at the bottom of the tank. She doesn't stay down there for long, and just ends up rising or swimming back up. She likes to stay in the top corners of the fish tank, unmoving. It seems she sleeps there too.
She does not flop to her side, and she swims fine, no odd movement or trouble just swimming as I can tell.
Basically it looks as if there is a balloon tied to her tail and she floats back up.
She eats her pellets, and she quickly ate the bit of pea I dropped in, too.
I did some research and if anything is wrong with her it seems she has a swim bladder disorder. Apparently if I feed her peas it will act as a laxative and she'll get better?
The only other reason I can think is there are bubbles from the tap water forming in the tank. Is it possible there are many tiny bubbles floating up making it hard for her to stay at the bottom?
I'm just a bit concerned and would like to see if anyone could offer some advice, thanks.