What do you mean by "larger?" In post #1 it mentions under 3 inches. This could include for example fish like the beautiful Congo Tetra. There are some of the gourami that are fairly peaceful, like the Pearl. The fish you have are all fine with either of these. And if you keep the rummynose, I would quadruple the group. I had over 20 in my 5-foot and then my 4-foot Amazon tanks and it was beautiful; this species is always better the more there are. They tend to stay in the lower half, so that needs to be kept in mind when looking at other species. Gourami would be upper half, so a good match. Congo Tetra are mid-level, that works. Floating plants are frankly essential with any of these, and they will be brighter coloured and less stressed.
