Hi Ed; I've been raising tropical catfish for the past 10 years and have had no problem with raising or survival rate with my fry. I feed them newly hatched baby brine from the time they are freeswimming until they are about 3-4 weeks of age and then adding finely ground flakes to this diet until they are approximately 1/2" in lenth and then I start feeding them live tubifex worms. I don't know about this other diet but, this seems to work quite well. When I first started breeding corys in the early 80's I would start them out on finely ground flake food and had a horrendous mortality rate. It seemed they were not interested in this food as a starter food. I would go back to starting them on the newly hatched baby brine and had no problem. I was constantly trying to find other foods to start them out on but I always had the same result. High mortality rates. I quit trying to find another starter food and just simply kept feeding the newly hatched baby brine. I have found with my corys, apistos, angels, killies and other species that I breed, that if I try to start the fry out on anything other than the newly hatched baby brine I end up with the same results as before. High mortality. I'm not against trying new foods but with all my years of breeding I've decided to stick with what I know works for me. That doesn't mean these other foods wouldn't work for other people who are breeding fish. It would be nice to see if others are trying other combinations and finding out their results. What may work for one person may not work for another. Kaycy