I answered some questions in the other thread. PH should be 6.5-7.5 with 6.5 being better. Mine is 7.0 and they are laying eggs so unless they are infertile I will not tinker with it. I have two pair in a 29 gallon. I'd say a 20 gallon long or bigger for these guys. Anything less and they'll never stop fighting.
And yeah be patient. I spent a month researching and finding my fish. Back when I was impatient my fish died all the time and no telling how much $ I spent.
Also search on here for blue rams and google. There is tons of info out there.