It appears my betta has a fungal infection. She has two small cottony white patches on her back and the tips of her fins look like they're melting. I know I need to treat her and am expecting API's Fungal Cure to arrive in about a week. She has a nerite snail as a tankmate and an anubias nana. I have two questions: 1) Should I treat the whole tank? I have not seen weird stuff on the snail or the plant, but I'm scared they may also be infected. 2) Is there anything I can do to treat fungus while I wait for her medicine? I have been doing 25% water changes every other day to improve water quality but I wonder if I could be doing more. Thank you.