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Re: Daphnia Observations

Hi, Bruce.

Daphnia have shells, so I imagine that's why they need hard water.  My tap 
water has 230 ppm KH.  I think if you hardened your water you'd get more 
daphnia.  Hard water is a prerequisite for raising them in any quantity.

Good luck!


<< I'm in S NJ and my daphnia are from natural sources, unknown to me because 
they just showed up. My water is pH 8.3, but soft. I never get a frenzy swarm 
of daphnia and wonder if I supplement minerals for hardness such as oyster 
grit, will I improve the production? They get goldfish mulm and algae for 
Bruce in NJ >>