Betta Fish is sick? Please help

[wanabegoodmom]

The ammonia can definitely kill a fish and I think it's likely that's the cause. The ammonia is caused by this fish waste and that's what causes stress and disease. They key is changing the water frequently; sounds like a 50% water change once a week is good.

[eam09003]

and as I said I was gone for 4 days so I only saw I guess the disease in its worse/final stage whatever it was...It didn't look like velvet because the discoloration didn't appear as a "dusting", it looked more like rot and as I said when I looked his gills were red with that "bleeding" appearance..as for fin rot I'm not sure because the dark patch was on his top fin which look like it was either very clumped or simply (it was hard to see) not there but his other fins were all fine

[eam09003]

yea It probably had not been changed enough and ammonia buit up :( I will change my other betta's tank tonight when I go to clear my blue one's which I have yet to do