hi..one of my dad's fish is havin BIG problems...
1)always floats at the top(its not on its bak or side but it swims around sumtimes)
2)half of its head(wen) is like bitten off(cant find ne traces of it in the tank)
3)one of its eyes is popping out....not like a ballon but like popping out....

i think that it could be the work of a very aggressive fish or it could be sum sort of disease? plz help thanks

da only things i kno about the fish tank are...
1)filtration:bio-wheel
2)water conditioner: aqua plus medications: none
3)food: floating pellets(dad doesnt soak them)
4)unusual: staying at the top right-side up, moves sumtimes
5)29 gallon with 4 other fish in it..i kno dat its 10 gallons per goldfish but my parents wont listen
6)water change:once a week, 75%
7)no new fish, most of them died
8)nope already mentioned them
i hope that helps somewhat remember..dese r my DAD's fish...otherwise..my fish r fine n healthy..been living for at least 6 months..

Sorry to hear that your Dad's fish isn't doing well.
To address the floating issue first, your Dad really should soak those pellets before putting them into the tank, that is a major cause of swim bladder problems. Your Dad shouldn't feed the fish for 3 days (don't worry, it doesn't do them harm, its actually good for them), then give the fish a pea (frozen, not canned, and thawed, probably cut into smaller pieces if the fish is small). The pea acts as a laxative for the fish, and your Dad should do the pea feeding once or twice every week.
As for the eye, does it look like this?.....
Popeye

hey..thanks for ur help..but the eye doesnt look like dat...its popping out..like a jack in he box kind of thing....n can u explain its wen being all broken off? little white fuzzes r around there where his wen is broken off..

What fish exactly are those 4 fish - commons, comets, orandas, telescopes? If your Dad mixes commets with other, slower fish, that might be causing some problems. Did you ever see one a fish being herrassed or nipped on by other fish?
The fish could have hurt his eye on something sharp in the tank as well. Is there an ornament in it? Plastic plants with spikey or sharp leaves? Even an intake tube of the filter could cause an injured eye if the fish swims into it hard enough.
The only times I have seen headgrowth going missing on a fish is with either a pleco or algae eater in the tank, or with a bacterial problem called Hole-in-the-head. Its different from the hole-in-the-head disease that cichlids or discus get. Is there a petstore in your area, where your dad could pick up some anbibacterial medication like Kanacyn?

hi...my dad has orandas....(i think dats how dere spelled) n he has this one fish..silver..we dunno wat it is...den we have dis fish that is white with orange, red n blk spots on it..i think its a calico fantail..not sure..i reallie dunt remember da names of dese fish of his...n we have an algae eater...n i've seen the silver fish n dat fish dat i jus talked about chasin other fishes around...we have rock ornaments that are NOT sharp or pointy...dere is a fish store...petsmart.....

Does the silver fish look anything like that?
http://www.aquahobby.com/gallery/gpleco2.html

hey no...but i have a blk one like dat...the silver fish is a fish...its like a mixed breed or sumthin