I did this with great success while trying to remove Pygmy Corys from a tank of Cacatoides. I caught 9 of the 12. However, I caught and recaught a couple of my female cacatoides and they were also guarding the bottle with the brine shrimp in it so no one else could get any. It was pretty amusing and frustrating at the same time. If someone is trying to trap fry, maybe it would be a good idea to leave the cap on and make a smooth-edged hole in the cap such that only the fish that are fry size can get in. Just a thought. G. Kadar ------------------------------------------------------------------------- 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"!