Hydra

I went to the website that was displayed by the user "mykids" and the article said they are monsters...yep really ugly monsters!!!!
 
The quickest way to rid your tank of Hydra is to purchase "Fluke Tabs". Crush 1/2 tablet for each 10 gallon and just either dump it in or mix the powder with a small amount of tank water first. Hydra gone in a flash!
 
AquariaCentral.com