hydra problem

[szymon328]

hey guys,

i just noticed a hydra infestation in my 20 gallon, no problem yet b/c i have no fish in it that are too small to be affected by the hydra, but i will use the tank soon as a breeding tank and im just taking an extra measure to assure my fry survive and since hydra can eat fry, im wondering how to get rid of the hydra

thanks