What size is your tank? 1.5 Gallon tank
What temperature is your tank? Temperature stays between 70-75 degrees.
Does your tank have a filter? I use a Tetra Whisper filter for 1-3 gallon tanks.
Does your tank have an air stone or other type of aeration? The filter came with an air pump.
Is your tank heated? No.
What tank mates does your betta fish live with? My betta doesn't have any tank mates.
What type of food do you feed your betta fish? Pellets & frozen peas.
How often do you feed your betta fish? I feed him 3 pellets once every other day and half a frozen pea once a week.
How often do you perform a water change? I've been doing it every day as of late but for the first two weeks 3 times a week.
What percentage of the water do you change when you perform a water change? 25% for the first 2 changes and then a 100% the 3rd time.
What type of additives do you add to the water when you perform a water change? I use a NutriFin Betta Plus water conditioner & I'll test the PH level. Depending on the PH level I'll use API's HP up or HP down corrector. I've also been using a couple drops of Tetra's Ammonia safe when the Ammonium level gets higher than 0.15 ppm.
Have you tested your water? If so, what are the following parameters? I've only been testing the water for PH and Ammonium levels.
Ammonia: 0.00 - 0.15ppm
Symptoms and Treatment
How has your betta fish's appearance changed? Besides the brown spots no. Pastel is usually a range of blues and white. He has a peach colored head though.
How has your betta fish's behavior changed? Yes, he seems more restless.
When did you start noticing the symptoms? He stopped making bubble nests about eight days ago and I noticed the spots six days ago. The fin deterioration I noticed this morning.
Have you started treating your fish? If so, how? I've been treating his 1.5 gallon tank with 15 drops of the BettaFix for 5 days now and doing 25% water changes.
Does your fish have any history of being ill? Not that I know of.
How old is your fish (approximately)? I can't say. I got him off the shelf at Petco.
Here's a link to a video of him - it shows more details than the photos.
Here are a couple of pictures...