Had a random crystal death in my shrimp tank 3days ago . May have been old age , but i decided to get a tds meter.
Tap water - 245 ppm
Main tank 1 day before weekly water change - using E.I salts - -540 ppm
Shrimp tank - 387ppm .
Im not gonna mess with main tank cause the weekly 50% w/c will keep the ppm in check.
The shrimp tank has had a 25% w/c and is now reading 301ppm.
Purchased 50l of asda still water @ 17p for 2 litres with 100ppm and are slowly introducing that to the tank . May do another 25% on sunday
I am aiming for about 200ppm on the shrimp tank