Thanks, Alpha. I did go to Dilabim. Guess I forgot the name. They were not able to do all of the work required for my annual physical so I could not include them for a comparison and did not consider them a full lab, as the others are.
I posted a similar survey I did a few months ago using Chopo, Go and Care. Same results. Care most expensive, Chopo least expensive and Go a little less than Care. I have never heard of Dilabim and do not know where it is.
UFO reported sightings have been a common occurrence around Lake Chapala for many years. This is not unusual.
The lake is only about 20 feet deep at its deepest point and has an average depth of about 12 feet in the center.