I realise tubastrea and similar corals are NPS. Now I read elsewhere these corals cannot actually detect light. If this is true can someone explain why a new colony will open up almost straight after lights out?
In the wild I can imagine there'd be other cues for the coral to use but in the monotonous regularity of my fish tank how does the coral detect that its now dark? ie theres no major shift in water chemistry or flow and a while before theres a change in pH.
Is there a change in chemicals released by photosynthetic corals or something?
In the wild I can imagine there'd be other cues for the coral to use but in the monotonous regularity of my fish tank how does the coral detect that its now dark? ie theres no major shift in water chemistry or flow and a while before theres a change in pH.
Is there a change in chemicals released by photosynthetic corals or something?
