SOrry if this is a thread that has already been posted.... I can't find a difinitive answer..
What size is your tank? 25L
What temperature is your tank? 80-82 Degrees Farenheit
Does your tank have a filter? Yes
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? 6 Neon Tetra (not my idea, it's my mums tank, I told her no but she wanted them. i just look after them! lol)
What type of food do you feed your betta fish? Betta Flakes, Frozen bloodworms (defrosted in tank water then drained of the fluids) half a pea once a week.
How often do you feed your betta fish? Usually only a little. couple of pinches for all 7 fish. although, it has been 5-6 days a week recently.
How often do you perform a water change? Every thursday
What percentage of the water do you change when you perform a water change? 25-50% (depending on water condition, for some reason, some weeks are worse than others)
What type of additives do you add to the water when you perform a water change? Nutrafin products, Cycle and... aqua plus I think, also a tablespoon of Aquarium salt every 2 - 3 changes (im a bit paranoid about it)
Have you tested your water? If so, what are the following parameters?
Symptoms and Treatment
How has your betta fish's appearance changed? A Large lump on his right side behind his pectoral fin(center of the body) It seems to be stretching and changing to a whitish colour. His finsall seem flat down though
h's behavior changed? Nope. He’s still active, responsive, still eating, etc.
When did you start noticing the symptoms? a little while now. I have been treating it as constipation... feeding cooked frozen pea, starving him a little. He has had fin rot recently (when mum added the Neons) but I managed to fix that fairly easily.
Have you started treating your fish? If so, how? I have changed the water, keeping it cleaner.
Does your fish have any history of being ill? Fin Rot Twice.Treated with Melafix and Aquarium Salt
How old is your fish (approximately)? 6 Months approx.