The MG is buffered to near 7.0 ph. (not tightly consistent nor exact...but close enough) Not too sure it matters much, but when forced to use non-horticultural ph adjusters to bring down my wellwater ph, I switch between vinegar and lemon juice.

Adding a slow release nitrogen source (worm castings) isn't doing you any good when the MG soil nutes are also slow-release. Problem is...you are no longer in control of the nutrient schedule. Temperatures, age of the pellets and watering determine how much of the nutrients are released.

If you are going to transplant into a larger pot with fresh MG soil...you will be 'starting-over' as far as wanting to deplete (use-up) the growth cycle nutes prior to switching to 12/12. Might still be better than keeping 'em in with the additional worm castings which can last quite a while and throw nutrient and harvest schedules off. If you have another non-fertilized potting soil with perlite...now would be the time to break it out. :thumbsup:

The only major problem with transplanting into MG this late in the game is delayed flowering, greening-up (dark green) and a bit of additional stretch. Might even be a good thing for a SOG, though. (or at least not so bad) And since you have two plants in the same pot...I strongly recommend a much larger pot. In the future, one plant per pot is likely a good idea.

Cannabis prefers a wet-dry schedule. Make sure you water deep enough to absorb moisture and nutrients into the lower root zones once a week, but allow to dry inbetween. Never let the pot get dry enough to accidentally toss it over your shoulder when you go to pick it up. (that's too dry)