multiple species - single tank
 

I see from the last picture that it is indeed possible to keep members of several species in a single tank. If you only have one of each though, will they still flash?

Im thinking yes... since they are so similar in apearance the presence of several makes will cause them to display.

Thoughts?

Mr. Tanaka,

Was wondering if you could share a photo of a female P. Cyaneus I have a non showing male. Could you provide any more info regarding this species.