Absolutely, it is probably a fungal infection. I use Tank Buddies Fungus
Clear; but there are allot of things on the market.
I would isolate the fish to a sick tank and put him through several fungal
treatments (two with Tank Buddies). I would treat the main tank once if the
other fish show no signs of infection. Get some fresh water salt and add
about 1 tsp per gallon. This will also help get rid of the fungus and
strengthen the fishes immune system.

"Alan Silver" wrote in message
...
Hello,

One of our fish has developed a white lump on a fin. It doesn't seem to
bother the fish, but I would like to know what it is and if I should do
anything about it.

Please have a look at :-

http://fish.alansilver.co.uk/Mark3/G.../040816BigBob/

and let me know what you think. TIA

--
Alan Silver
PSG Fish Tanks - http://fish.alansilver.co.uk/


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