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.
Definition. PRN is an abbreviation that comes from the Latin term pro re nata.. Its actual translation to English is for the thing born, but its common medical meaning is as needed.. It used to identify a medication that can be taken as the patient needs it rather than on a fixed schedule.he most common types of PRN medications are those that treat occasional conditions. These include drugs to control pain, sleeping pills, anticongestants, cough medicine and medications that treat occasional stomach distress.