I'm thinking of creating a betta first-aid kit just in case of emergencies and if I ever bring home a rescue betta. It will have aquarium salt and Epsom salt but I don't know what else. The problem is, in England, many of the API brand medicines aren't available or if they are, they have expensive shipping.
Are any brands better than others, here in England? Any recommended products that are available in the UK?
Thanks in advance?