ETB Light Cycle

[Zoe]

Hey,
My ETB now resides in my room with the rest of my boids. Normally, the boids are on a 12/12 light cycle, but for four months of the year (breeding cycle) they are on a ~9/13 light cycle. I am aware that, being equatorial animals, ETBs have 12/12 all year, but that with ATBs, a 12/12 photoperiod is not a necessity. Is it a necessity with ETBs, though, because they are more 'delicate'? I can easly hook up another timer to her bulb so she still has 12/12, but I wanted to know if it was necessary.

Thanks!
Zoe