OK, as I woke up I noticed my fishes head was cought behide the wire of the filter. I slowly moved the filter and the fish swam away. That's when I noticed the lump the left side of his body (I have pictures below) he used very fat(he still is on the side without the lump) and small part of his body has gone down the normal size on the side with the lump.

He appears to still be active, but when he swims he tilts to the side now. There are other fish in the tank, could they have something to do with this. There is a pleco in there about the same size and I have seen him go for this fish and suck on the side of him for a few seconds.

I do not know the gender or age of this fish, I brough him from a pet store about 5 months ago and he was as fat is he was before.

I would be a great help if some one could tell me what is wrong with my fish and how I could stop it. Also if it will ever look the same as it did before.

Before the lump appeared
http://i790.photobucket.com/albums/yy188/skater-ellis/dadscam2246.jpg

After

http://i790.photobucket.com/albums/yy188/skater-ellis/use5.jpg

http://i790.photobucket.com/albums/yy188/skater-ellis/use.jpg

http://i790.photobucket.com/albums/yy188/skater-ellis/use4.jpg

http://i790.photobucket.com/albums/yy188/skater-ellis/use3.jpg

So you have a Pearlscale goldfish here.
I have a couple and they regularly get themselves caught in the filtration system.
This hasn't effected them at all.
This lump may well be from it trying to wriggle free.

If it is still acting normal I would monitor and see what happens.
In my opinion, it'll be fine.

There's more information about Pearlscales here: Pearlscale Goldfish (http://www.aquaticcommunity.com/goldfish/pearlscale.php)

So you have a Pearlscale goldfish here.
I have a couple and they regularly get themselves caught in the filtration system.
This hasn't effected them at all.
This lump may well be from it trying to wriggle free.

If it is still acting normal I would monitor and see what happens.
IMHO, it'll be fine.

There's more information about Pearlscales here: Pearlscale Goldfish (http://www.aquaticcommunity.com/goldfish/pearlscale.php)


OK, thanks for the help. If it says like this is there anything I should do?