Feed pods etc while cycling/curing new tank?

[lastlight]

My tank is 2 days old now and I've got a few pods crawling around in my Chaeto ball and a couple feather dusters, a bristle worm and a brittle star at the very least on the small piece of live rock. All of this is in the fuge and 2 additional pieces of rock are in the display but I've yet to see anything on them (pretty high flow up there!)

Should I shut flow to the fuge off for a few hours and add a few drops of phytoplankton or something to help the pods multiply/thrive? I don't imagine there is anything at all in the water column/on the rocks to support the little life I have in there. I'm new to this seeding a giant pile of dead rock thing and need advice. Ammonia levels are <0.25 as of last night but of course they will climb. Maybe the pods won't even survive the spike?

Any and all advice regarding this would be great thx.