I have a CBB in qt that has started to get some Lympho's, a small one on his back below his dorsal fin and the bigger ones on his pectoral fin that you can see in the picture. I did run a round of Furan 2 when I first put him in qt. I'm feeding him Mysis and BS soaked in Selcon along with live black worms. He's very active and eats like a pig, but the Lympho's on his pectoral are getting bigger and that's my concern. After losing the first one to a bacterial infection I don't want to take any chances with this one, is there anything I should do or just let it run it's coarse?

