Here is a picture of my fish:

http://img366.imageshack.us/my.php?image=fishiegx4.jpg

The white spot/bump was there when i bought him, but it was very small. I didnt notice it. I got him 4 weeks ago. He never really ate much but he was quite active. He is in a 1-gallon tank (not bowl) with declorinated (I use Topfin as a dechlorinator), unheated, unfiltered water. But the day before yesterday, when I was doing his weekly water change, I noticed that just hours after I changed the water it got extrememly dirty (I did a 25% water change). So yesterday I gave him a 100% water change (keep in mind that throughout the last 4 weeks the bump above his mouth was getting bigger and bigger) and the water got even dirtier. But when I woke up this morning I saw that the tank was filthy and the water was very very foggy and that my betta had a gigantic white ball (the spot where the bump was) and there were strands of white filmy stuff hanging out behind it. He was in the same spot for the whole day (i assure you he is not dead, just been gulping air). The fungus-looking stuff the scales are spiked up and the whole side of the face has swelled. Just to be on the safe side I moved him to a warmer room in the house. He hasnt eaten anything for the last couple of days and I’m very worried about him! Also just as a note, the tips of his tail fin have turned black and are starting to look ragged and curl up. What can I do to help my betta?
p.s. i reposted this twice.
but what can i do tight now?
he’s so weak i’m afraid he’ll be dead by tomorrow morning!!!!!

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