The problem with using daphnia for algae control is that they need to eat
algae. So if they were able to eat up all the algae then they'd die and the
algae would all come back as it would be feeding on the organic mess the dead
daphnia make.

And when you put in fish with the daphnia they'll eat many of them up. The
balancing act of algae cells to daphia to higher predators sounds like a big
headache to me.

There are easier ways... click on the site below my sig. for all of them.







kathy :-)
algae primer
http://hometown.aol.com/ka30p/myhomepage/garden.html