Those photos are awesome. Never thought of it getting that big, I hope not in mine anyway.
Fishman, if you look closely on your tank glass, you might see some of these copepods like lice running across the surface or free swimming in the water. The bigger ones you might find by shinning a torch into the holes and cracks of your LR
. If you don't see any then you can introduce them by buying more LR
. The new LR
should seed your tank. When I bought my first LR
, it took one week to get into a copepod bloom. After about 4 weeks, the amphipods (I think) have grow to about 8mm.