What are those things you are feeding in the feeder´s picture?
I´m looking for something ready available and that won´t come out easily through the holes.
I bought a CBB, I´ve had 2 in the past and used them for aiptasia infectations, unfortunately after they ate all of the aiptasia they died.
But this new CBB I bought it because they trained it at the LFS to eat zooplankton, they feed it sweet water´s zooplankton, little chunks the size of small pellets, and it eats them readily. I bought it today and fed it 5 hours later and ate them!.
But right now I´m keeping it in the fuge, I don´t know how easily will it be for it to catch the food in the 175 gal, that´s why I was thinking in your idea, have you tried grinded shrimp(shrimp through cheese grinder)?, I mean what else would be liked by a CBB and be heavy enough not to fly so easily from your feeder?