What size is your tank?
5 gal tank
What temperature is your tank?
26 deg cels
Does your tank have a filter?
Does your tank have an air stone or other type of aeration?
Is your tank heated?
What tank mates does your betta fish live with?
another male betta, separated
What type of food do you feed your betta fish?
betta flakes, dried black worms
How often do you feed your betta fish?
once a day
How often do you perform a water change?
only recently got the tank, changed water once (weekly). was an ignorant owner for the first few months and did weekly 100% change in a bowl
What percentage of the water do you change when you perform a water change?
What type of additives do you add to the water when you perform a water change?
none. just bought AQ salt. just added
Have you tested your water? If so, what are the following parameters?
Symptoms and Treatment
How has your betta fish's appearance changed?
belly sunken, white marks just beyond the gills and below the head, fin and colour are dull
How has your betta fish's behavior changed?
When did you start noticing the symptoms?
quite awhile now, say a month. which lead to research and the new tank, filter, and heater purchased last week
Have you started treating your fish? If so, how?
Does your fish have any history of being ill?
How old is your fish (approximately)?
advise on how to treat would be much appreciated. His tank mate, a betta a friend gave me show some white marks below the head too but not as pronounced. worried its contagious and the second one might get quite sick too