Just one female will typically produce about 200-1000 eggs per spawn, and she'll spawn every 4-5 weeks or so if conditions are decent enough in the tank (“decent” is pretty easy for tilapia).

Why you should never eat tilapia?

Tilapia is loaded with omega-6 fatty acids, which we already eat too much of in our modern society. Excess omega-6 can cause and exacerbate inflammation so much that it makes bacon look heart-healthy. Inflammation can lead to heart disease and also exacerbate symptoms for people suffering from asthma and arthritis.

How quickly do tilapia reproduce?

But, how quickly do tilapia reproduce? If the conditions are right, one female tilapia will spawn between 4 weeks to 4 months, depending on the species. Even if the survival rates are very low, you'll still get a tank full of tilapia fry within a very short period of time.