Apr 13, 2015 #1 wikilea Aquarium Advice Newbie Joined Feb 2, 2015 Messages 5 Hey! I saw this white lump on my tiger oscars fin and I was wondering what it was.
Apr 18, 2015 #2 Delapool AA Member Site Team Joined Feb 7, 2013 Messages 16,731 Location Perth, Australia My thought would be fungal. Did it go away?