Hi ok i have a 7" jackdempsy and i think its a female pale colouers if it was a male would be more couler full and ponted fins right, so my 2nd jack is 2 1/2 " can u alrady tell if its male or female just buy the fins or do i havto wait till its 7"???

I'm not sure about overstocking as I am unfamiliar with all the fish and their adult sizes (remember that just because someone has 20 fish in their 125 - these may be species that don't get quite as large as the ones you have. The oscar and jags get huge not to mention that the Jacks can get pretty big as well), but I can tell you that it looks like you may run into some compatibility issues. You have a wide range of aggressiveness in your fish and this is generally not a good thing. For example, your Jaguar, Jacks, and green terrors are very aggressive fish whereas the peacocks are pretty mild as far as cichlids go and silver dollars are extremely mild mannered. I would be very worried that as these fish grow, you are going to suffer several casualties. I'm actually surprise you haven't already. Just my opinion though. I would remove the peaceful fish and focus on aggressive breeds,

OH fatter lol i thoet it was bc of thr fins??????