Petsmart rams are pretty bad quality IMO. If you have them in Quar. right now I would hit them with copper cuz more likely then not they are carrying something. Hormone/color treatment are done via water or food and very likely done to petsmart and petcos fish. Growth hormones and heavy use of Astaxanthin and other food additives. Usually they are too stressed to tell much of anything in the shop tank but the big give away is usually their size and coloration not how they are colored. All in all they look quite different then fish you would get from a proper breeder at that size. Petsmart rams are not going to be as hardy, so if you do have issues with them don't take it as you can't keep rams or something. Well bred and reared rams are quite hardy. Temp wise anything from 76f to mid 80s. Fry need mid 80s. Plants can be quite heat tolerate well above 80, but it varies from species to species. Couple of my planted tanks are kept at 80-82. I had a 10g full of hornwort that was 86 for months and it produced plants just fine. I'm not really picky on temp since fish usually are not. From a decent breeder young to unsexed rams run $5 tops. When buying unsexed tho don't expect them to look much of anything like what google shows you. Hobbyist breeders fish never look as nice at that size cuz they are not suppose to, its a juvi and it should look like a juvi. Info online is just that, and never applies to everything. My rams are local bred, its pretty easy to find breeders local to me. Their tank is currently 8.3pH sometimes drops down into 7.8pH, temp ~82, about 50% water change weekly.
I currently don't sell rams, not counting the MN weather ATM. I have 3 pairs in a 40B that spawn up a storm. Then a young unproven juvi. pair that is already claimed. Jaysee is correct with the raising tho, theres a considerable learning curve. I haven't been entirely unsuccessful but success rate is very near to zero. Its usually always at the same point over and over again... so one of these days. I pulled a spawn from them last night, after I told them they were not gonna spawn until tonight so I could have a chance to get a 10g cleaned out for them, but no dice. This spawn probably won't last till the weekend, they ended up sharing a tank with at least 100ish rainbow eggs.