[Zbrafish] Fungizone

[Kim]

Has anyone ever used fungizone to prevent the growth of fungus on
their zebrafish embryos?  I am running toxicity tests and am not sure
if the growth on the bottom of my plates is due to my toxicant or
fungus and would like to eliminate any chance of it being fungus.  If
anyone has information on what concentration I should be using and at
what stage I should add it to the water.

  Cheers!