Are Endler K-class Males More Aggressive Than N-class?

Random question: I have been able to keep my 5 male/3 female Peacocks and 4male/2 female blue stars and assorted gender Orchid endlers in their own tanks with no need to separate the males and the females even though I am just getting started building these fish populations and have way more males than the recommended 3f:1m ratios......

However, I recently had to separate the tiger males from my females because they were swarming one of them to the point where I was worried for her safety. They seem MUCH more aggressive than my n-class fish. I also had to separate my Red endlers from their new girls today because the boys would not leave the girls alone. All of this pulling out of males means I now have a 29 tank with about 15 assorted male endlers. (K class)

Has anyone else noticed the K-endlers seem more aggressive than the N-class endler males.? I did not expect this problem, so I am new owner of ANOTHER 10 gallon fish tank with 6 red endler females. I am hoping to add 2-3 males to the tank once the girls have settled in.

Any suggestions? Is my perception that the hybrids seem more aggressive accurate? I have much to learn about these little fish, and now I am wondering if I need to have more smaller tanks with only 1 male and one female when I want to breed more fish? Does it matter if I have 2 or 3 different types of male endlers in the tank with the females? Should I try to have more control over what type of babies I end up with?

I keep all my n-classs fish carefully separated in their own tank, but I currently have several diffierent colors of the k-class endlers, and I don't know if I need to be more precise about mixing these different types of endlers.

TIA, Lisa..

 

I've occasionally had N class male Endlers that were quite aggressive although it mainly showed up when the ratios were way off and in crowded all male tanks. They do tend to pick a particular individual (who might even be a male), and then a group of males will harass that one to no end. The only way to calm things down is to pull the victI'm and/or increase the ratio of females to males to 3:1. A lot of hornwort or hygrophila can also help the girls to hide and rest a bit.

 

My tiger endler (hybrid) are very peaceful, I haven't even witnessed them trying to eat fry. On the other hand my japan blue endler (hybrid) are very fry aggressive and they nit pick all the time at each other.

 

Being N-, K- or P-class should not be the reason why aggression occurs. Could be the ratio of males which triggers some aggresion amongst them like Endlercollector already mentioned.

 

Thanks guys! This makes sense to me, and I have since tried to reduce the quantity of males that are in with my females. Things do seem more peaceful now.