RD- agreed absolutely, and didn't mean to suggest you didn't have the background or were suggesting anything untoward. My wife and I are looking for a little place with a little yard, my quiet goal being to build the system outlined earlier for a (breeding?) colony of loaches, probably clowns. I've been saving your links and taking notes on your interpretations. Not kissing your backside, quite serious.
What I'm suggesting to our Bill is that he (re)develop/hone his skills to maintain "perfect" conditions according to the husbandry status quo (what is known to work and make/keep them healthy) before getting experimental. Keep the cart behind the horse, so to speak.
And Bill, I agree- in the absence of parasites I also find clowns are much tougher than they get credit for, and as RD said the specific natural conditions are not established or published... but that's not an excuse to "wing it".
Sincerely,
Preachy-preachy Tree-hugger.