I've kept Mobas with an Endli Bichir and a black arow in a 300 gallon tank before, but I had to quickly removed the Mobas only after 4 months because of the Arow and Bichir growth rate.
Check out my video on youtube. My channel is "fishyfishyfishy504"
The video is under "2011-06-21 odd ball tank"
Sent from my DROID RAZR using MonsterAquariaNetwork App