I just purchased an AquaC Urchin Pro (basically the in-sump version of the Remora Pro) and installed it 1 week ago. It has still not produced any material in the collection cup. It is producing the foam and bubbles but not enough to go up to the collection cup.
Is this normal? I heard about 2-3 days break-in period but not this long.
Previous to this I was skimmerless for about 6 weeks. The tank is fully cycled with two damsels only.
What do you have for LR in the tank? I have the Urchin Pro and it took about a week to get good skimate. If you have a really small bioload and a lot of LR, there might not be much to skim yet. Give it a little time, it should be fine.