well my pair spawned and until yesterday I was nearly convinced it was two females however there is one baby to come out of the entire batch. is there anyway to increase the males fertility? or could it be due to the stress of travelling as they spawned a week after I purchased them
Is your water very hard? What is your Ph and Gh/Kh?? Sometimes if the water is hard the sperm cannot penetrate the eggs as well. This will leave you with a smaller batch of fry. Investing in an R/O unit may be in order.