Pictures,... OK, here are some pictures, facts and numbers.
2018/08/15 (day 2) 'some' larvae:
Since my last successful try in 2015 I don't use clear saltwater. As in pisciculture I use green-water (saltwater an many nannochloropsis salina). Feeding only fresh artemia. Artemia are allowed to crow up.
2018/08/26 (day 13) larvae in green-water:
2018/08/26 (day 13) setup:

Five tanks (vases in which the water circles perfectly).
2018/08/31 (day 18) grown larvae (z3 and z4 phase) in green-water:
2018/08/31 (day 18) setup :
2018/09/08 (day 26) many megalopas:
2018/09/08 (day 26) megalopas in transition tank:
2018/09/08 (day 26) megalopas in transition tank:
2018/09/16 (day 34) now three transition tanks and only one vase:
2018/09/16 (day 34/1) Good morning in my crabitat:
After that I cleaned two vase and now the are circling around.
Since I had not much time I cleaned the vases only once a week. I counted the larvae while cleaning.
Later on, since the first megalopa, I cleaned and counted each day. Here are the results:
