I just can't put my thumb on it, something is wrong but I just can't seem to tell what.
Over the weekend I noticed that he didn't look right. He seems to have stress stripes and his body is pale but his fins are still vibrant. His activity level seemed normal until this morning. He seems a little sluggish and looks like he's having a hard time swimming, he's just laying on his plants near the surface.
He's around 2 years old I'd guess, I got him in May 2009 from Petsmart.
His tank specs are..
2.5 gallons cycled
no heater (but the tank stays at 76* for some reason, I tried a heater but it seemed to make him bite his tail worse)
last water change was Saturday (due for another today or tomorrow)
I don't know what's going on. I have to leave for work now, I just hope he's still with us when I get back.