How/when do I feed reef roids and suppliments??

[Nano]

I cant speak for kalk or zoplan as I have never used either, but in terms of reef roids, I do this every 2-4 days, you dont need a lot, I cant give a specific measurement, I just dip the end of a spoon handle into the reef roids, and take out a bit, (maybe 1/8 of a tsp? not sure) then I mix it into some tank water and pour it in beside a power head so it gets all through out the DT usually around dinner time cause its convenient for me, also all the corals will be open at this point, aside from some lps that will extend the tentacles at night to feed