hi sujoy
artemia is artemia.
![Very Happy :D](./images/smilies/icon_biggrin.gif)
of course they are different - scientifically - in hatching (e.g. "russians"
![Laughing :lol:](./images/smilies/icon_lol.gif)
go with 20 %, californian with 90 % or more; depends on the brand), food value etc.
what I ment is: hatch the artemia and freeze them. but of course I forgot that not everybody does hatching. fresh artemia - 2-3 hours old - have an exellent food value, then it decreases.
anyway: they eat all once they are established. tubifey are ok, but as the provenance is not in control ("mood worms" can stock heavy metals) and fat content is high don't exaggerate and give not to much. the survivors go underground.
in my vacancy I was lucky to find ga. viriosus and couldn't resist. the tank water was about 6° kh, the water in the place I stayed <1° (a "dream-water", directly from tha alps!); as I have always a little tank with me, I made a slow adaption of 12 hours! it took them 10 days to cope with that and start to eat. never seen that before. "normally" - with the conditions here - they start after 2-3 days.
cheers charles