is my fish sick

Question
ive had my betta for about a month and recently noticed that he is growing a white/green algae from his head and all over his scales and what should i do

Answer
Hello,
I would do a waterchange and then try a medicated bath or medical solution. There should be a wide variety of antibiotics for this at your local fish store. I recommend going and seeing what they recommend based on the products the have in stock.