We only started keeping fish recently. About six weeks ago we got four platies. I'm pretty sure that they were sold as "all male" or "all female" - don't remember which. At the time I didn't know how to tell the difference. Anyhow, turns out that two are male and two are female, with obvious results...
... which is not really something we want.
We're planning on taking two of them back to the fish shop and replacing them with two of the opposite gender, so that we have four of the same gender. My question is, should we get all males or all females? Does it make any difference? (I know that males are supposed to be smaller and more colourful, but mine all look identical in terms of size and colour - only the
gonopodium fin is different. And will there be any behavioural issues if they're all the same gender?
Similar Aquarium Fish Forum Threads 
