What could be wrong with my ember?

[Erised]

It started 3 days ago now, water is fine, they've been in there since setup 3 months ago, but have had them for half a year. No obvious signs of disease. It will half swim on its side, more like, tipping over 25%. On moments it will 'pinwheel' through the aquarium (swim very fast, tolling over and go through the whole tank). It's not acting any different cept for that. Still eating bloodworms and all that ... I'm really confused!

 

[WILDER]

Is it tummy area bloated, if it's eating try a shelled pea, it's sounds like swim bladder.

 

[Erised]

Nope, not that I can see. She just has a nice and healthy belly on her. Also, I thought swim bladder was caused by breathing in air and that deforming it? She never goes up for food or air, she eats algae tabs and bloodworms. I'll try the peas anyway though =)

 

[WILDER]

If it's not to late you could try a swim bladder treatment, or antibiotics.