Yep, you're right. I did a quick google search and found some reading for ya.

http://koiclubsandiego.org/library/alkalinity.php

http://wernersponds.com/pH.html

http://www.pondkoi.com/water_quality.htm

What is the pH of the water that you filled the pool with?

www.hoosierpondpros.com


http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).