Turquoise rainbowfish temperature?

[Dillan Murphy]

Is 78 degrees to high of a temperature for turquoise rainbowfish google, says no higher than 75.

 

[Flyfisha]

It is not a species I have kept but my wife keeps suggesting and playing all the videos.
Originally from Papua New Guinea.
i don’t see how 75 f / 24 centigrade can be right for that tropical country. A quick search suggested another temperature on this site if you follow the link.
Turquoise Rainbowfish – Melanotaenia Lacustris – Tropical Fish Site

 

[JettsPapa]

Mine are thriving at 78°.