I suppose I should’ve scooped them out and killed them (I counted about a dozen), but I was just so fascinated to see something from “Blue Planet” happening in my aquarium that I just turned the light back out, then back on and filmed it instead. 
Sorry for the poor quality of the video above, but if the larvae in the water column hadn’t been some of the larger zooplankton, we couldn’t have even seen that much! I think the corkscrew motion they make when swimming is really interesting. I’m just fascinated by all the natural processes going on in the aquarium. This is, I guess, just another example of the way I tend to think of this mini-reef tank as sort of a science project.
I’ve considered getting fish for this mini-reef and I think I will give it even more serious consideration. Clearly the tank is producing it’s own live food, perhaps not in sufficient quantities to completely feed fish, but enough to supplement whatever I would feed them. My idea was for this tank to be a balanced ecosystem, starting at the bottom of the food chain with live rock and whatever it produced: amphipods, small bristleworms, algae, bacteria, etc. Then I added algae and detritus eaters: hermit crabs and snails. Then filter feeders: featherdusters and a couple of days ago a small sponge. I not only have micro-plankton and (probably, invisible) nanoplankton, but also “bite-size” plankton. I need to step up my fish research.
