Today i moved a pair of Texas, male 6-7" female 3-4", and while i moved them i thought i'd have a look at them to see if they were ok, and he male was fine and on the male i've noticed a really big sore/tumor, attahced tot the base of her fin. I know that it's a poor picture but it wasn't easy to get it on my own. What could it be and how could i treat it?
