I'm pretty sure I have this figured out but wanted to confirm my suspicion: I'm a week into cycling my Reefer 350 (~75-gallon display with ~18-gallon sump), and I so far have 0 ammonia, 0 nitrite, 0 nitrate. I'm cycling with about 60 lbs live sand, 20 lbs live rock, and 70 lbs of cured dry rock. When I kicked on the pumps, I saw what looked like dozens of tiny white brittle-stars blow off the rocks--pretty sure they were all dead, so I thought there would be plenty of decaying matter to start the cycle. I'm guessing maybe not? Should I toss in a piece of shrimp or a chunk of frozen mysis or something to feed the bacteria?

