I currently have (2) Brevis (1) Male and (1) Female in a 20 Gallon Long Aquarium after realizing I had (3) Males and removed (2) once I realized that despite my hopes I received a disproportionate number of males. I just got the confirmation that my order for (4) Similis has shipped but my other aquarium is not fully cycled yet. Can these species be placed in the same aquarium or should I put up a divider until the other aquarium is fully cycled? I know Rock/Cave Dwellers can be mixed with Similis or Brevis but am unsure how Similis and Brevis would work or if there would be too many issues. I checked my LFS for a divider but it does not look like it would allow for any filtration on one side of the aquarium. I can build a temporary divider if need be or was considering grabbing a 5 gallon aquarium as I have enough cycled material to support that. As always any help or advice is appreciated!