Today I caught +/- 4in Rio Grande Cichlid from a local river here in Texas. I've got him in my smaller quarantine tank where he will stay for a week before I decide to release back to where he came from or put him in my larger aquarium. I noticed that he has something that appears to be small greenish worms on his fins and scales, it could be some sort of algae, I don't know. Was wondering if anyone could diagnose this and offer a remedy. Otherwise its back to the river for this guy.