Last month we went over the actual spawn. This month, we will go over behavior after the spawn.
The good news is that unlike many other Cichlids, Flowerhorn will usually not eat their eggs.
They will display other common post spawn activities that many Cichlids display. The female will take up a position above the eggs and will constantly mouth the eggs. The purpose of this is to get rid of any eggs that are infertile and to keep fungus from forming on the eggs. She will defend the eggs with her life. If you put your hand in the tank near the eggs at this time, she will viciously attack it (and it will hurt). Most of the time she will chase the male away from being directly above the eggs, but not always. It can vary depending on the pair. The male will usually stay near the eggs guarding against any other threats. Once again, if you put your hand in the tank, even on the other end, the male will attack it. While the male and female will often show some aggressive behavior towards each other, they will not usually do any actual damage to each other while there are viable eggs. You can feed them pair while there are eggs without any worry that it will stimulate the to eat the eggs. They will eat while they guard the eggs.