I had a 10g planted before I got my Juruense. In two days, it ate all 6 of my guppies, and about a dozen bee shrimp. I figured he ate my 6 Amano shrimp, as I didn't see them for weeks. Well, two days ago, I sat in front of the tank and saw all 6 of the shrimp hidden in a piece of driftwood. The surprise!? There were a few hundred tiny specks crawling all over the java moss. I guess if conditions are right and food is plenty, breeding is natural.