Mine is doing fine. Still in the QT tank with a clownfish. It still will only touch blackworms. Even if I drop in worms and brine at the same time, it won't touch the brine. I think I need to get a cone feeder, so it cannot tell what is in the feeder.
I just keep my blackworms in the fridge, and change the water every 2-3 days. The first batch, I kept in too deep of water and too many in one container, and they crashed.....pretty sure they suffocated. The next batch I split into several containers, and only enough water to cover them. The cold water slows the metabolism, I'm not even trying to propagate them.