I noticed some type of growth on the lateral fins of my pleco today. I am unsure what type he is; he is light gray with black lengthwise stripes and red eyes. The lfs said he was a bumblebee pleco, but I am unsure. I am sorry, but no pics as of yet. The growth itself is a pinkish-beige color and looked like a glob of oatmeal. I keep him in my 10 gal feeder tank with about 20 guppies; 1/2 of which are fry. None of the guppies have this on them and all the fish have been in the tank for 2-3 months. I wanted to grab a hold of him and pull this stuff off, but I wanted to first find out what it could be and if that was a wise move or better to medicate. Please let me know if anyone can help. Thanks Tom