Hi I am wondering if I should medicate for Ick, fin rot or both? I stupidly introduced 4 danios to my tank that all had slightly damaged fins, w/out q/t. Four days later they had white spots on fins and/or body and were removed from tank. Now my rainbow shark has white discoloration on the tips of his lower fins and anal fin. Was planning on treating with NO-ICK. Should I treat for fin rot too? What medication should I use? Is this a bacterial infection or a secondary infection from Ick? Thank you in advance for any well deserved reprimands and hopefully, advice.

