First thing. I do not want to get grilled for these questions. 
I just got a 55 gallon tank and I want to get an Oscar. Doing my research every where that I went sent to get a 75+ tank. A couple of days ago I decided I wanted a green terror as a tankmate. I know that 55 gallons is too small for one Oscar and very small for a green terror + Oscar.
So here the question. Can I buy a small (2-3) Oscar and a small green terror and put them in a 55 gallon tank? Then about 10-12 months down the road get a 125+ tank for the both of them?
Or I could skip the whole Oscar thing ( really dont want to) and get different cichlids to put in my 55 gallon tank and noth worry about getting a bigger tank.
Thank you.

I just got a 55 gallon tank and I want to get an Oscar. Doing my research every where that I went sent to get a 75+ tank. A couple of days ago I decided I wanted a green terror as a tankmate. I know that 55 gallons is too small for one Oscar and very small for a green terror + Oscar.
So here the question. Can I buy a small (2-3) Oscar and a small green terror and put them in a 55 gallon tank? Then about 10-12 months down the road get a 125+ tank for the both of them?
Or I could skip the whole Oscar thing ( really dont want to) and get different cichlids to put in my 55 gallon tank and noth worry about getting a bigger tank.
Thank you.