Don't need a skimmer. Frequest water changes are good and bad. Good that you are taking the bad out and putting good in, but bad because you are constantly messing with the stability of the water in the tank, which can both/disrupt coral growth.
Mircobubbles should go away. I know it seems like 2 months is a long time, but it's really not when it comes to completely breaking in every aspect of the skimmer. A lot of people fashion some kind of device with a sponge on the outlet of their skimmers so that the microbubbles are caught - or atleast- reduced to a minimum before they make it into the display tank.
where's me money