Yes I tried to put him in there with the Betta, but then the betta got irritated

So he gets bullied in both situations.
I put him back in the 20 gallon because the betta looked like he was going to kill the gourami, flaring his gills and curling his body. So I think tomorrow I am going to try to put the Bully Gourami in a breeding net for a couple days and see if that tones him down -- it gives the battered gourami a few days of not having to worry about the bully and to get some food. (speaking of which, my gouramis (or the bully, the victim used to be, but not anymore) are quite the opposite of yours, JON, they eat right along at the top with my danios and my glass cats are the ones who wait for the food to come down)
If the breeding net doesn't work, than I will try to trade him in for a couple female gouramis. Or maybe a few more glass cats or danios

Although I don't want to do that
