Re: Joe the Chicago breeder, he doesnt participate much on these as he gets way too many emails asking how many clowns can they breed in their community trigger tank.
He also has/had a full time job plus the hatchery. He has spent a LOT of time/money coming up with a stable water system, uses nitrate removal columns and heavy UV, so, thats his secret, build the best water stabilizing system that you can and monitor it,
he doesnt sell except in wholesale quantitys . But last I knew he had all the business he wants. As said, if you buy clowns in the Chicago area they are most likely his if they are tank raised.
We corresponded quite a bit before I left the country, his system at the time was probably the best I have ever heard of.