While it is possible that the parents ate the eggs, or let other fish eat the eggs, take a close look around the tank. Attentive angelfish parents will often move the eggs. Look at other flat surfaces, both vertical and horizontal, for the wiggling eggs. You may find them stuck to the heater or sides of the tank.
Regimen: A plan or a regulated course, such as a diet, exercise, or treatment, that is designed to give a good result. A low-salt diet is one type of dietary regimen.
The dosage regimen is the modality of drug administration that is chosen to reach the therapeutic objective. This depends on the drug used, the condition to be treated, and the patient's characteristics. The decisions defining dosage regimen are about: Route of administration.