Hello Koiphen,
Is it normal for new fish to flashing?
I ordered 8 fingerling koi fish online. They are 5-7 inches long. Within couple hours in quarantine tank after delivered, at least 2 of them are started flashing.
The q-tank is 50 gallon. It is in the basement and water temp is consistent at 70 degree. It has a 1000 gph submersible pump to a 5 gallon s&g filter. It also has a small aeration stone.
Water is from main pond which has 1 fish in it. Water quality is good before adding fish. After about 10 hours of adding fish, I test water again and everything still look good except ammonia rise from 0 to .25. I didn't feed the fish yet. I added 1 pound of solar water softener salt so far.
Is there any thing I can do before it get worst?
Thank you all