What i have done is put one on each side of the tank.
I like to use the Sinus Wave on one side with a min and max of 30 and 60. And then use Sequence 1.
The other option I have done.
Two independent Stream groups, one sinus at 30 to 60, and the other stream group at constant at 30-50% depending on your tank size, with thunderstorms at 80% and night like 20%.
Quite a few options
Hope this helps!!
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