First, you send me a batch so I can grow them. Then you get a 9v battery and two lengths of copper wiring. put the wires on the + - input and outputs. Place the wire in the tank and the hydra should quickly begin dying. You may want to take the fish out. I have heard people have had great success with this. My peckolita ate all the the hydra that hitched on some plants into my tank. I want to grow them in small containers because they are interesting when they are not in your regular tanks. Do you know what kind you have? Are they the green variety. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!