So i have a clown trigger, picasso trigger, harlequin tusk, and a white spotted puffer and all of them were clean till i noticed a larger white spot on the tusks pectoral fin. I left it alone until like last week i went and bought some Herbtana because i heard it was great for my fish and safe for my live rock. I just now took out the carbons so all this time i have been treating i had carbons in. I lowered salinity, raised the temp, treated w/ the herbtana, and just now took out the carbons. I bought the meds when i noticed small white spots on the tusk and all the other fish so for a couple days it all went away except the big spot. Now its back with a vengence and its pretty bad. Please help, really desperate now.