Silver Arowana growth on fin

[liam821]

I have a healthy 20" Silver Arowana. He is active and eats great. He does, however, have a weird growth growing on his up fin. I don't think it bothers him, but it is really weird looking.

He is in a 375 gallon aquarium, water levels are normal.

Any idea of what it is, or how I can get rid of it?

thanks!
liam

 

[Bderick67]

Looks like fin was damaged and one of the spines has grown into this mess. I would atempt to cut it off at what should be the tip of the spine.

 

[liam821]

Looks like fin was damaged and one of the spines has grown into this mess. I would atempt to cut it off at what should be the tip of the spine.

...and how would I go about doing that? His weird fin is attached to the rest of his fins. Id have to cut the webbing between the two spines.

 

[piranhaman00]

like Bderick67 said it looks like the spine got damaged and just grew back like that.

However, i would just let it be.