Noticed a cple red worms on fins and a lip of a cple of my "dither fish" in a ray tank. I pulled the said specimen out, removed the worms with tweezers and hit the wounds with iodne. Also ordered some Dimilin to kill off the free swimming cycts. Should i also go through a cple rounds of Potassium permanganate to ensure i removed the worms or will the dimilin kill the adult/female forms of anchor worm also? Never used the potassium or dimilin before. ill b picking up some potassium from the hardware store after work. last ? lol...is dimilin safe for rays specifically young rays. Thanks!