I grow daphnia in an outdoor 100L (+/- 25g) tank, and they grew very very well for a few months. then on the first hot summer day, most of the stock died. Though, after a few weeks they bounced back to their former great, at which point i messed up and had a mass die off again. Now, their tank water is green (awesome daphnia food, apparently) and there are fairly many daphnia in the water, which i check by swooping a net through the tank. But, their numbers are not going up-there aren't enough to harvest yet. And after several weeks with enough food and oxygen, they just aren't multiplying as they use to. . . .
any ideas on what the problem could, on what i could do?
slow growing daphnia
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