I got my betta about 3 weeks ago. I put him in an existing 10 gallon tank with heater and filter that has had an African Dwarf frog in it for 3 years.
The water parameters:
I've been doing small partial water changes about every other day. I vacuum the gravel and remove and replace 2 gallons each time. I have well water and add stress coat every other time I change the water.
Yesterday my betta was fine. But this morning when I fed him I noticed his fins were tattered. He also has 1 long split in his caudal fin.
At first I thought maybe he had gotten stuck to the intake of the filter or had hurt himself on a plastic plant that was in his tank (I've removed it, it was one that looked like this: http://pimg.tradeindia.com/01221151/...STIC-PLANT.jpg
...but then I noticed spots on his pectoral fins.
So I don't know if he has fin rot or fin damage.
Here is a picture of him when I had first gotten him:
Here you can see the tattered fins, and the long split in his caudal fin
And in this picture you can see his pectoral fin with a small white spot on it (there are actually more on this fin, but it was hard to capture in a picture). There are spots on both his fins. In pictures of him when I first got him there are no spots like these on his fins.
In person the spots look like thinned areas on his fins.
So what does everyone think based on the pictures?
I've added a dose (1 tsp) of Melafix to the tank and removed the carbon from the filter. Should I continue with my every other day water changes? The bottle says to dose once a day and change the water after 1 week. But am worried because I don't want the level of medication to get too high for him (based on what I've read about Melafix and bettas online) and also want to keep the water as clean as possible.