Originally Posted by Oceane
Any idea how old or how big they have to be before they start breeding? Does the size of the tank make a difference?
Which one were you referring? Angelfish or clown loach?
Clown Loach will never spawn in the tank until they reach the potential size of 12 inches which is almost impossible to achieve in captivity.
As for angelfish, they become sexually matured once they reach the size of 4 inches in body diameter and age of above 9 months. Some strains are late bloomers particularly the ghost strains which may take about a year to become sexually mature instead of months.