I am new to this site & also new to Parrtot Fish. I have had my parrot fish for about 1 1/2 years. I have them in a 25 gallon tank & they seem to like it. I noticed a lot of digging in the gravel and a few days later I see eggs all over the rocks. I have been reading the logs on this site & cannot seem to find one that tells how to fertilize the eggs. If the males are steril then how do the eggs get fertilized? Thanks for any help that any of you may offer.