I did a 50% PWC after testing my water. Ph 7.6, ammonia 0, nitrite 0, nitrate 20 ppm. I have had these zebra danio for about 4 days, I also got some neon tetras at the same time, I had lost a couple of tetras since i got them, which is pretty normal I think, they are such weak fish.
I had not lost any of the danios so far, until did the water change, and then BOOM two of them dead within 2 minutes of the change.
Did I do something wrong? Has anyone had this happen?
I had not lost any of the danios so far, until did the water change, and then BOOM two of them dead within 2 minutes of the change.
Did I do something wrong? Has anyone had this happen?