F fishy100 AC Members Jun 22, 2015 88 13 8 Mar 11, 2017 #1 Sexing 4 weeks old guppy fry: Reactions: ustabefast
G garnetspot AC Members May 12, 2017 6 0 1 43 May 12, 2017 #2 it might be hard to detect the gender of guppy fries until they reach at least 4-5 weeks old