Nope, those are for African cichlids, I believe. Africans like really hard water with lots of minerals in it. Rams tend to like soft water with a low pH, but can be adapted to just about anything. They do tend to be fairly sensitive to major changes in water conditions, and easily stressed. The best thing would be if you can find some that were locally bred in the water in your area, but if not, you should still be ok.
If you didn't know, I would note that they are fairly aggressive and territorial, especially if they pair up for mating. I had four in a 55 gallon, and by luck I ended up with two mating pairs. Within a few weeks, I only had one of the four left because of the aggression, plus they killed a pair of firemouth cichlids. Just a warning about them. You might do best with just two in a tank that size.