Another thing that was funny just after those photos were taken is the huge disk-shaped bulge inside the middle of the Polypterus (spell?). He wouldn't stay still enough for a photo though. Since you liked those so much here's a couple more that weren't as good.
Here is the polypterus's cute fishy face: (he's such a curious fella, he came over to check out the camera!)
Next we have his whole body for those who like this fish:
And these two are always hanging out together, which is strange because the crab will take no time at all in backhanding the gouramis when they come too close!