Posted: Sat May 08, 2010 6:22 pm
Many fish stores do add salt to their tanks as a prophylactic treatment to prevent parasite outbreaks. It is a decent thing to do since they have so many incoming new fish and parasites to deal with. Salting is probably one of the easiest, cheapest, and most popular quality control methods, but it's not the best. The best is quarantining all new arrivals in separate tanks (no central system), the use of a UV Sterilizers, daily gravel vacs or bare bottom tanks, daily water changes, and micron filtration.
Problem with salting is that many of these stores don't notify their customers that they are salting their water. If the customers take those new fish home and just do a quick acclimation, and don't use salt, then the fish will likely go through osmotic shock. When I started fish keeping, I lost many of my new fish due to osmotic shock. I didn't figure out why they died until I got a TDS meter. When getting new fish, I suggest testing the TDS, GH, and KH of the bag water, and then adjust the Q-tank water until it matches the bag water.
One potential problem with TDS meters is that they can be the cause of cross contamination between tanks. It should allowed to fully dry or sanitized between uses from tank to tank.
Problem with salting is that many of these stores don't notify their customers that they are salting their water. If the customers take those new fish home and just do a quick acclimation, and don't use salt, then the fish will likely go through osmotic shock. When I started fish keeping, I lost many of my new fish due to osmotic shock. I didn't figure out why they died until I got a TDS meter. When getting new fish, I suggest testing the TDS, GH, and KH of the bag water, and then adjust the Q-tank water until it matches the bag water.
One potential problem with TDS meters is that they can be the cause of cross contamination between tanks. It should allowed to fully dry or sanitized between uses from tank to tank.