Russ,
The best test kits for aquarium analysis that I have found (in reguard to reproduceability of results) are the LaMotte kits. I have since switched from individual test kits to the LaMotte aquaculture kit AQ-2 which has yielded consistent results for me. I got the kit from Aquatic Eco Systems.
![[Linked Image from img.whynotgif.com]](http://img.whynotgif.com/fishing/fishing-64.gif)
![[Linked Image from i68.photobucket.com]](http://i68.photobucket.com/albums/i9/jdsmith2/misc/I_subscribe.gif)
