I live in the USA too. I have used it all over the years. Rid-Ick, Quick cure, ich-attach, coppersafe, salt, Parasite guard, IPA general cure, formalin-3, and Clout.
I like the copper safe the best for none planted tanks. I had some really hard to kill ich there are different strains of it some is easy to kill off others linger. I sware some have built up a resistant to the malachite green. But I could be wrong.
I liked Rid-ick for using malachite green treatment. But I really hate using that stuff is stains and is just a nasty chemical.
Ich-attach 100% organic. That stuff is a waste. I used it for a week dosing 3 times a day and the ich got worst.
Clout is the best. It works scary fast. After 24 hours my fish were back to normal with only a few spots. so I did another treatment after a large water change. The fish were 100% better. But to make sure no free swimmers were in the water I dosed it with Formalin-3 everyday after for a few weeks. The ich is gone. I did this in my planted tank and all my plants are fine my fish are all happy and healthy.
So Clout is my pick for a planted tank. Coppersafe for no plants.
But it all depends on the type of fish you keep too.
Temp should be as high as your fish will allow for. Run some air bubbles to add O2 because warmer water has less O2.