Betta emergency

1. 
   Tank size: 10 gallon
   pH: 6.8
   ammonia: 0
   nitrite: 0
   nitrate: 0
   kH: 40
   gH: 30
   tank temp: 79 degrees
   
   Fish Symptoms (include full description including lesion, color, location, fish behavior): He is a white betta. When He arrived I noticed a clear pectoral fin. I thought maybe it was regrowth from an injury. A month later it is still clear. He is breathing heavily and it looks like a little red spot under this fin by his gills. It's hard to see. Today he has been resting in his plants, gravel, and cave. Not swimming much. He is eating.
   
   Volume and Frequency of water changes: 20 percent water changes weely.
   
   Chemical Additives or Media in your tank: when I first got him I used api stress coat. Now I am using prime.
   
   Tank inhabitants: java fern, anubias, arrogant blue, marimo ball and hornwort. Also terracota caves. I use a sponge filter as well. He also has a floating Betta log.
   
   Recent additions to your tank (living or decoration): none
   
   Exposure to chemicals: none.
   
   Digital photo (include if possible):
   

Ch0le said:

Thank you.

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