When I took a tour of Ocean Rider's seahorse farm, they did say that they "domesticated" their seahorses by selecting for "friendly" seahorses. I'm not too certain how they did that within less than approximately 10 generations (a general guess due to approximately when the original pairs were collected as well as seahorse gestation time and rearing to adulthood).
This seems intriguing. By selecting for more "friendly" fish, we might be able to get incredibly shy species (swissguard basslet, assessors, etc.) to be more outgoing than their wild-type cousins. I assume this doesn't exist yet because we're still working on how to select based on "friendliness".
Your always gonna have that domance with the bigger clowns over the smaller, thats just how their natural pecking order is in order to breed
I'm glad to hear someone's breeding them for personality! I can tell the aggression level of individual fishes regardless of species by observing them. Typically larger ones exhibit dominance over smaller ones. That expression is more pronounced in some than others. I assume that breeders are able to tell this too and make mating selections accordingly? certainly it is more work but it would be nice to have a bunch of clowns who won't kill each other to death or bite your hand when its in the tank.
I understand dominance. pecking order is always there. I accept that. I have had fishes who express it in gentler ways. and I also have seen fishes who will peck those smaller till they die. It's the degree of aggression and how they show it. that one can select. I often do that when choosing fishes in a store. I find that it results in lesser behavioural problems in the tank.
So...you're specifically breeding for friendliness to humans? How does one judge friendliness in a fish? Obviously all wild-caught fish are going to be rather shy/aggressive when it comes to their human keepers, and captive bred fish will be friendlier, but how does one keep selecting for friendly fish? The ones most willing to engage in sexual acts with one another when a breeder's present? The one's most willing to eat food in a person's presence?
Additionally...please note my skepticism when it comes to Ocean Rider. I think they judged friendliness by how quickly the seahorses rose to greet their keepers when approached...which is easily achieved by feeding the fish whenever they see you...