Okay so I have a blue green veiltail male. He is usually a pretty active little guy but for the last few days he has been very sick. He started not eating about 4 days ago. His color went to almost completely black and he developed a white cottony patch on his top fin. He stopped swimming around and just layed on the gravel of his tank. I went to the pet store where I got him, immediatly, and they suggested he has a fungal infection. They recommened Pimafix. I am now on day 3 of the 7 day treatment. For the first 2 days I didn't see any improvement but then this afternoon he was actually moving around quite a bit. He was swimming but he was upside down and sideways and very clumsy. However, this evening he started laying on the gravel again and now is trying very hard to breath. It also looks as if he is trying to swim but for some reason he cannot. He is just kind of "jumping" around the gravel. Please help!!!
Housing:
1 gal tank w/ light
air stone
no filter
no mates
used to have a live plant (recently died)
Food:
Bettamin flakes (he hates pellets) once every other day
Blood worms- for a treat once or twice a week
Maint.
100% water change every other week
Tap water with a betta water treatment
Symptoms
explained above.
never been sick
bought him five months ago