15 Gallon Tank Espei rasbora smaller than harlequins?

[ToOthleSS04]

I have doubts in choosing these guys. I already have Harlequin rasboras in my 31 gallon tank, and they're gorgeous, but get large around 5 cm. Lately I saw the Espei rasbora, and they're pretty cool actually but there's no clear size chart that can make me choose them (some say that they get 2.5 cm max and some 5 cm). Anyone that had them in the past can give me an answer? Thanks!

 

[dcutl002]

Looks like 25-30 mm. https://www.seriouslyfish.com/species/trigonostigma-espei

 

[RayClem]

Although Lambchop rasboras do not get quite as large as the Harlequins, there is no reason you cannot keep them together as both are peaceful and do well in similar water parameters. Remember that they fish like to be kept in groups. Scissortail rasbora are another fish you might consider since Lambchops and Harlequins have similar coloration. The contrasting color might provide visual interest.