When to turn on t5 light

I have a t5 lamp with the following t5 bulbs:

3x Giesmann pure actinic

1x Giesmann Power Chrome aquablue+

2x Sylvania coralstar



Its possible to time when the light on 2 and 2 of the bulbs goes on.

Currently i have the following settings:



1: 2x Sylvania Coralstar starts at: 8:30 am and is on for 12h

2: 2x Giesmann pure actinic starts at 1:30 pm and is on for 6h

3: 1x Giesmann power Chrome aquablue and 1xGiesmann pure actinic starts at 3.30 pm and is on for 2 hours

This is just a random setting, since i really dont have a clue.



So whats the optimal settings?



The tank has been up and running for 1 week, have a couple of sps (acropora).



(old tank cracked)



Regards,

Stian



Norway