Ken, As a matter of fact, the first culture I received supposedly had a "pinch" of dry yeast mixed into the culture. The guy I got it from told me I wouldn't need to add yeast to the next culture if I took my sample from the original culture. They need very little if any from what he told me. I use less than 1/4 tsp. from the original batch, and that has enough worms and whatever else they need to get going very quickly. I have duplicated the culture probably 10 times to give away, and I have never had a growth problem without the yeast, and I don't have any overwhelming odors coming from the cultures. If I use too much oatmeal, a little mold will form on parts of the oatmeal, but after a couple weeks, the mold goes away, and the odor with it. Another time, I had larger openings in the lid and some sort of gnat or fruit fly got in and laid eggs on the oatmeal. I had little maggots about 3mm long, and microworms in the same culture. (the fish ate the maggots, but weren't too fond of them, I just had to try it...) Since then, I make a few slits in the lid instead of larger holes. No more maggots. And the maggots did produce a slightly different smell as well. I would try it again if I were you, and make one batch up with no yeast at all and see what happens. Happy worm farming! Phil Eaton Dallas TX ----Original Message Follows---- From: Ken Laidlaw <kl@roe.ac.uk> Does your method produce any odour? The once I tried it the smell was disgusting and my wife was none too pleased, especially after I told her that there were worms involved in there. My recipe included using yeast which was where most of the smell came from. Ken. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!