This species is closely related to L. fuellbomi Ahl, from which it differs in its more slender body and higher lateral scale count. Aquarists have crossed L. trewavasae and L. fuellborni . Hybrids have been reported as sterile in some instances, fertile in others. Both species coexist in nature, but mottled, or OB, females apparently occur more frequently in L. trewavasae than in L. fuellbomi . As with L. fuellborni , a number of color morphs of this species are known.
Most males imported have red dorsals.
It is interesting to note that Fryer did not observe this characteristic in his material. Other morphs range from mottled and solid blue males through orange females. This site is hosted by the PetsForum Group, Inc ., the world's largest provider of electronic information about pets and animals .