Water change and sudden death
A few weeks ago I was doing a lot of water changes in my 120 because I was fighting blue green algae. Using tap water and Amquel. One day when I got home from work all three of my clown loaches were dead. The other fish in the tank seemed fine.
Sunday I did a 20% water change in a 20xh that had two swordtail females,
and three leopard leaf fish. Unbeknownst to me they were doing work on the
water main up the block. Monday when I go home from work the swordtails
were dead. The leopard leaf fish were fine.
Is this just me? I'm starting to get scared of making water changes.