HI all. None of my fish (cories, rummy noses, 1 GBR) use up the top portion of my 29g, so I was considering getting a dwarf gourami. I wonder if anyone would disrecommend having both 1-2 GBRs and a dwarf gouramI in the tank? (Note that currently there's only 1 GBR, but I plan to get her a friend sometime.) Would taller plants encourage the rummies and GBR to use the top portion of the tank more?