Tamus:
Akai San started on this board about 6 months ago... he's asked almost every question about pond construction and raising koi, he's gone from "How thick should the bottom of a pond be" to "How best to breed Koi" and everything in between, including "Moving to Japan"...
I would think he's quite knowledgeable on theory and he's gotten most if not all his information from this board... Someday he may even build a pond, and buy a fish or two...
When he does, he'll do it right, because of what he's learned here...
If you have pressing health questions, koivet.com is a good source of information...
Stick around, review some of the older threads and you should do OK... some very good people frequent this site...
Aloha! Mike