Hi - I've just joined this forum so I apologize if I'm not doing this properly.
My betta fish has developed a lump on the side of his body. He still eats and swims around, but I notice him sleeping(?) a lot leaning against a castle we have in the tank.
What size is your tank? 10 gallon
What temperature is your tank? 80 degrees
Does your tank have a filter? Yes
Does your tank have an air stone or other type of aeration? Biowheel?
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? Omega One Betta Pellets
How often do you feed your betta fish? Every night 5-6 pieces. Every so often, we skip a day during the week.
How often do you perform a water change? Every 30 days we change 2/3 of the water. We also top up the evaporated water to the fill line once a week. The owner of a fish specialty store told us to use Natural Spring water - so that's what we use.
What percentage of the water do you change when you perform a water change? 66%
What type of additives do you add to the water when you perform a water change? We do put a water conditioner in, but it's natural spring water we use, so it doesn't have chlorine in it.
Have you tested your water? If so, what are the following parameters?
No, have not tested.
Symptoms and Treatment
How has your betta fish's appearance changed? Yes, large-ish lump on side of his body closer to the head then the tail.
How has your betta fish's behavior changed? Not too much, but 'lies down' a lot.
When did you start noticing the symptoms? I noticed it about 3-4 weeks ago.
Have you started treating your fish? If so, how? No
Does your fish have any history of being ill? No
How old is your fish (approximately)? We've had him for just over a year.
I could attach a picture if that's allowed and someone can tell me how to do this. Thanks - I appreciate any advice.