Hi, recently I noticed my betta's back tail looking ripped up and ragged, and I figured this could be caused by water quality and tank conditions. I had a brown algae problem that I have since fixed completely, and have regulated the pH and alkalinity levels religiously. I've been treating him with Melafix for about two weeks. I haven't seen any worsening of the condition, but I'm not seeing much regrowth. He's acting completely normal and happy; he's swimming around consistently and normally and has an appetite. Is there anything more I can do to help his tail grow back?