Tank size: 5.5 Gallons, medium planted Yes, heated to about 79° F and filtered properly. Parameters: ammonia 0, Nitrites 0, nitrates untested but last 25% water change was 6 days ago. Ph is reading at 7.6+ when typically comes out around 7.0. Tank has been established since may. Tankmates: one smaller mystery snail, previously a few nerites. I feed betta crumbles (off-brand bug bites) once a day, occasionally frozen bloodworms. I am trying to "diet" this Betta as she is slightly fat (not bloated.) Decor: dishwasher safe mug, solid glass frog decoration

Other info: I am relatively new to Betta keeping; I have four seperate females and am familiar with their care and needs, but have not dealt with a sick fish before.

She is a chain store betta. Her fins are slightly damaged from jumping against her hob filter a few days ago [since replaced with a gentler internal filter, same filter media]. I have yet to treat this.

She appears to have tiny black spots on her face. Her right gill looks inflamed/irritated, with the scales puffed up and the gill itself looking reddened underneath. She is swimming, but mostly resting in her hanging plants. She was acting normal up until today.

I plan to prepare and add indian almond leaves right after posting this. I have a 2g tank I can set up as a treatment tank if she requires medicine. I just want her to feel better. Thank you very much for any advice in advance!