Hi I have had my betta flame for a week now and I think he has fin rot and it seems to be getting worse. he's currently housed in a 10 gallon but I bought a 1.5 gallon incase of emergencies like this. I bought bettafix, api aquarium salt and api tetracycline to treat it.
What temperature should I keep him in the 1.5 gallon (I have no heater for it)?
Could I use the 50W heater in the 10 gallon as an alternative to heat to 1.5 gallon?
Do I need to do 100% water changes every day during the process?
How long can I keep using aquarium salt?
If aquarium salt doesn't help should I go with bettafix or tetracycline?
This is what flame looked like a few days ago
This is what he looks like now