My fish always eat their eggs after two days. How can to tell if the eggs are fertilized? What color do the eggs have?
5 to 10 minutes after spawning, cover them with wire mesh.
They would have no chance to eat the eggs.
The eggs is clear transparent normally.
If the fish has treated with red enhancer, the egg is red.
The eggs if turn white in 2 to 3 days, not fertilized.
The eggs if turn dark will hatch out.