Hello.
I started the feeder since a week, in addition this year I will give them a lot of Zooplankton.
Here in the photos there are millions of small Daphnia Ceriodaphnia reticulata.
There are so many that they form columns under the light.
If I know the varieties that I have, it is because I have send specimens of different varieties of Daphnia to the University of Montréal.
https://ibb.co/c15f83qhttps://ibb.co/VwW7FMhA+