2 months should be enough for it to stabilize. Maybe give it a bit more air? I know with my skimmer when I restrict the air too much it create a lot of microbuble (Deltec 300) but produce a darker skimmate. When I increase the air intake it skimm more wet but produce no micro buble. Not sure yours will behave the same way but it is possibly a matter of fine tuning the air. I have also put some filter floss on the output to absorb and disperse some of the bubbles.

I will try that out I have had nothing but problems with this skimmer it will randomly brake it's suction so I'm always watching