I'll start off with my first betta :
Sorry no picture it is really tiny and he will only swim up to the light of my camera for a second before he realises its not food and goes back to his own bussiness
Housing
What size is your tank? 2 gallon
What temperature is your tank? 86
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
Food
What type of food do you feed your betta fish? Tropical betta (a mix of flakes and dried up blood worms/krill), Sera bettagran (pellets)
How often do you feed your betta fish? 1-2 a day depending on what I feed and how much I give
Maintenance
How often do you perform a water change? everyday at the moment till I get my larger filtered tank
What percentage of the water do you change when you perform a water change? I did a 100% yesterday and 50% today, usually 50% everyday 100% every 1-2 weeks
What type of additives do you add to the water when you perform a water change? Aq. salt and Tetra Aqua Safe water conditioner
Water Parameters:
Have you tested your water? If so, what are the following parameters?
Ammonia: No ammonia test was available have ordered one online
Nitrite:0-1 mg/l
Nitrate:25-50 mg/l
pH: 8
Hardness: >16°d (I believe its around 38°d in my region)
Alkalinity: 10-15°d
Symptoms and Treatment
How has your betta fish's appearance changed? he has something attached to one of his pelvic fins, it looks mucusy when I looked with my magnifying glass it looked like a dark brown red worm or something
How has your betta fish's behavior changed? It hasn't really he seems happy blowing a lot of bubbles and eating well
When did you start noticing the symptoms? yesterday
Have you started treating your fish? If so, how? 100% water change added 1tsp per gallon aq. salt raised temp of water.
Does your fish have any history of being ill? just a bit of fin rot/clamped fins when I bought him
How old is your fish (approximately)? Really couldn't say he's my first betta I chose him cos he looked like a baby/runt.
My other betta I just got to day I went to see if they had anything antiparasitic for my above betta and saw a little betta bobbing in the bottom of the tank his fins have been bitten off by other fish in the tank (not sure what breed they were they had long thin flowy tails) and a few dead fish were in the bottom of the tank. Some guy had just put two new bettas to float in the top of the same tank like he was planning to just put them all in together there were a few fish already fighting each other in the tank. I got my bf to ask how much he was and lady just let me take him for free cos I guess no ones looking for a fish like that :(
This is him (haven't named him yet):

Housing
What size is your tank? 1 gallon (temporary) at the moment he is just in a 1ltr cup while I set up await instructions
What temperature is your tank? room temp so 68-77F (will order another heater today they dont sell small tank heaters in the store)
Does your tank have a filter? no
Does your tank have an air stone or other type of aeration? no
Is your tank heated? no
What tank mates does your betta fish live with? none
Food
What type of food do you feed your betta fish? Tropical betta (a mix of flakes and dried up blood worms/krill), Sera bettagran (pellets)
How often do you feed your betta fish? 1-2
Maintenance
How often do you perform a water change? everyday at the moment till I get my larger filtered tank
What percentage of the water do you change when you perform a water change? Will do 100% today and 50% everyday after (100% every 1-2 weeks)
What type of additives do you add to the water when you perform a water change? managed to fid some API stress coat! so I will use that and some Aq. salt.
Water Parameters:
Have you tested your water? Not yet
Symptoms and Treatment
How has your betta fish's appearance changed? Bitten torn fins, also some fraying in the fins.
How has your betta fish's behavior changed? I fed him since I got home he ate well, he stays mostly at the bottom of the cup, when he was in the tank at the store he also stayed near the bottom of the tank. He did swim up for food.
When did you start noticing the symptoms? N/A
Have you started treating your fish? Preparing to do what I mentioned above
Does your fish have any history of being ill? N/A
How old is your fish (approximately)? He is very small and the lady in the shop said he was a baby and before they bit his finds off he was a half moon but I don't know whether to believe her.
Any additional tips on how to keep him warmer till the heater gets here would be great.
Products I have:
API stress coat
Sera Toxivec (conditioner that also removed nitrates and ammonia)
Tetra Aqua Safe (standard conditioner)
Sera Aquatan (standard conditioner)
Sera Omnipur ((Versatile water conditioner that is quickly and safely effective against almost all pathogens occurring in freshwater. These include bacterial infections (e.g. Columnaris, Aeromonas, Pseudomonas, fin and gill rot), infections by fungi (e.g. Saprolegnia), single celled skin parasites (e.g. Ichthyobodo, Chilodonella, Trichodina) as well as skin and gill flukes. The treatment can also be used for disinfecting external injuries and furthermore prevents secondary infections. - ingredients in 100ml are amino acridine hydrochloride 105mg,acriflavine chloride 600mg, ethacridine lactate 3,375mg, malachite green oxalate 79mg <-- I was planning to use this on the first betta mentioned if the parasite or whatever it is doesn't drop off by itself soon))