my betta has ich how do i treat it. he is in a 15 gallon tank with a whisper 10 filter with 3 cardinal tetras. it is at 76-78 degrees. im not sure about anything else. but i just noticed he had it today he might have had it for a week alrdy because i noticed he isnt as active as before. what do i do? plz reply asap much thanx.
