Apparently those fish are living up to their published water quality requirements or sensitivity. They reportedly tolerate low DO well - 0.3-0.5ppm. It must be LCS are not very tolerant of some type of reduced water quality which explains why they have dissappeared from many localites especially streams. Canary in a coal mine type of thing. I think holding LCS esp large ones in a crowded tank does cause some undue stress that many other fish can tolerate. Evidently LCS are not as toleant of certain stressors as other "regular" pond/lake fish. To date these stressors may be unknown. This may be a factor in using LCS in ponds that occassionally have poor OR unfavorable water conditions, such as high turbidities or other unknown chemical stressors. At this point, we also cannot completely dismiss the affects of the electro-shocking and handling had on these adult fish. Are LCS temperamental?

Last edited by Bill Cody; 04/02/10 04:04 PM. Reason: edits & clean up

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management