Dosing nitrate

The zooxanthellae in coral only photosynthesize during daylight. It would make sense that maximum uptake occurs during the day. The research supports this -

“A diurnal rhythm was noted in nitrate uptake rates, after changes in concentration had been taken into account, which suggests that although uptake continued over the complete 24 h period, maximal rates of uptake were not maintained throughout the night.”

 
I would suggest that you dose beginning in the morning, just before the lights come on.

If possible, divide the amount into multiple smaller portions throughout the day. The last one coming a couple hours before the lights go off.

If you can only do one dose that will work, but the level will vary more during the day.
 
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