Kill I've been using FF happy frog lately, has even more organic nute matter but needs more added to it than ocean forest does. With happy frog you should modify to help drainage, and most importantly adjust the ph, it comes with a base ph around 5.0. Other than that its been great so far.

As for the height issues, I've dealt with that kinda problem recently myself, so if you need any ideas let me know and I'll post you some pictures. I waited too long to control my height as well so I had to get creative and its worked great so far... except for one plant, which is now destroyed, but that was a whole different story of carelessness and procrastination, haha.