MTF
>Mach,
> I'm not an expert in fish physiology, but I think the migration of water
>across the gill membrane is the problem rather than loss of salts. How would
>you raise the TDS? Are you planning on making something like a marine mix
>without the sodium chloride?
>JWB
Mach T. Fukada, Web Master
fukada at hawaii.edu
Honolulu Aquarium Society
http://www.geocities.com/Heartland/Meadows/2948/HASF.html