Sorry I missed the pic requests... It's very difficult to get decent pics in my fishroom due to all the glare/reflections... I can only get close ups but the female hides whenever I get right up on the tank... The male is below (7")
In my expereince... 4 or males raised together having never met a female have about a 30% chance of working out after sexual maturity, and a 70% chance of a battle royal ending in death.
When I raise a brood as soon as a pair forms I seperate them from the rest...
But if you raise a handful of Blues in a large enough tank, when a pair forms they will be too busy preparing to spawn to kill others. In too small of a tank the others will not be able to excape the pairs territory and the male is likely to kill them.
I'm assuming your 65 gal is a 4' tank... and in my experience, when a pair forms in a 4' tank, IF they create a nest on one end or the other, the unpaired fish will have room to escape. IF the pair's nest is in the middle, the others are in trouble...
Personally, I would try it. But as soon as you see the first signs of pairing, remove the odd fish. But spotting this is sometimes hard. Many times I have seen the tougher fish (usually males) hang out together but shun the weaker fish (usually females). This may look like pairing, but obviously isn't. But if all the fish get along and hang out, then one day one of them doesn't seem welcome in the 'pack', it's best to get the odd fish out sooner rather than later.
I'll try to get a Blue x Blue pair pic soon...
