That’s how I feel, since they only live around two years for me I noticed a few fry will grow up and replace the colony over and over, but the number never goes above 6. I started out with four. The tank will be filled with babies and then they slowly diminish and the few that grow up replace them. Now that I’m able to spend more time on the hobby again I might get a big tank and start raising them all, I definitely find it confusing how one day there is 100 babies and the next day 10 or so. I figure they’re so small once they pass they quickly disappear.That's outstanding. Had a pair of yellow hippo campus erectus in the early 80's weaned them off live brine shrimp. They learned to eat frozen Mysis shrimp. They spawned a couple of times but I didn't have resources or time to raise the fry.