One of my angelfish is not eating and it has been about 48 hours.
There is 2 and they are being treated with tetracycline (day 3, just did 25% water change) in about 15 gal. of water.
Have a heater, a bubbler, and a filter running all good for 25 gal. tank.
I feed them once a day, he looks interested but then food just floats by his face and he doesn't try to eat.
How long can an angelfish survive without eating? Is it time to stop treatment? I know with human bacterial infections you want to treat for the full course, otherwise any existing bacteria can become immune.
Thanks