I had roughly 150 babies that are now approaching 3" in length including their tails. A second batch of babies (roughly one inch) are also in the same tank (150 gallons). Forty of the juveniles were sold to a local store with zero losses. No baby losses that I can see. It all looked wonderful until this past weekend.
All of a sudden I started losing the juveniles, first one then five and then four, then tonight the worst of all, twelve more.
I have been doing daily water changes of 35 gallons, the ph of the water in the tank is 6.8, no nitrates to speak of, and the queerest part of all is none of the adults or the new hatch have been affected.
I have kept fish for 44 years and never experienced anything like this, I am at a total loss. Is there something I am missing.
All comments, questions and/or queries welcomed.
Thanks in advance