Fishy first aid kit

[Railcar79]

I am gone from home and my tank for long periods, leaving my wife who's fish knowlegde on a scale of 1-10 is about 2. With all the addatives and medications out there, it gets a bit confusing, so I will ask it here

What are the must have bottles for first aid in the tank.
I have some Prazi
Coppersafe
Prime
Kent ammo detox

 

[Railcar79]

Moved to reef discussion