I got a new betta fish. Actually, I have two. They're in separate tanks. My female veiltail Natasha has a nice looking tail and fins. She's doing fine. My male deltatail Tom is having problems. It's weird! His bottom fin is curling slightly and he already has a small tear on his tail fin.
This is his housing specs and such.
What size is your tank? 3 gal
What temperature is your tank? 80F
Does your tank have a filter? No
Does your tank have an air stone or other type of aeration? No
Is your tank heated? Yes
What tank mates does your betta fish live with? None
What type of food do you feed your betta fish? BettaMin Tropical Medley fish flakes
How often do you feed your betta fish? A couple of flakes about 3 days a week.
How often do you perform a water change? once a week
What percentage of the water do you change when you perform a water change? 25%
What type of additives do you add to the water when you perform a water change? Just a simple tap water conditioner (API Tap Water Conditioner)
Have you tested your water? If so, what are the following parameters?
Symptoms and Treatment
How has your betta fish's appearance changed? Small tear in tail. Bottom fin edges are starting to curl.
How has your betta fish's behavior changed? No. As spastic as ever and blowing bubble nests!
When did you start noticing the symptoms? About a week ago.
Have you started treating your fish? If so, how? Started using a little bit of Maracyn II. Less than 1/8th a teaspoon.
Does your fish have any history of being ill? No
How old is your fish (approximately)? I can only guess about 6 months.
The odd thing is Tom and Natasha have the same kind of water with the tap conditioner and I've had Natasha longer. Her tail is perfectly fine and her behavior hasn't changed.