thanks, Bryon, and no, I haven’t seen spawning. I have ~20 tetras with 6 endlers in a 44 gallon tank. I read when one observes mating behavior in tetras, the pair can be removed to a smaller tank, say 10 gallons, that has a mesh screen over the substate for the eggs to drop through. I read the male will circle the female and kinda box her in. It’s been a year and I haven’t observed this. I have GloFish tetras & am well aware the company fiercely guards the patent but won’t go after home hobbyists who don’t sell them to pet shops & individuals. My understanding is the babies will resemble either mom or dad, assuming they are different colors.