Electric Blue Rams

Male rams have a territory on the bottom of the tank which they defend against other male rams. The tank floor size will dictate how many males can be put in a tank.
A breeding pair will defend the area around their eggs, and then fry, chasing every other fish away. In a small tank, this will be virtually the whole tank floor. I have not kept rams but I have kept Bolivian rams and apistogrammas and those fish just chase intruders away; they never harmed the other other fish. The main problem arises with cories which are incapable of learning to stay away and can be harmed.
Two females might bicker but there should be no real problems - though it is not unknown for female cichlids to lay unfertilised eggs and defend those.


It is quite tricky to tell the gender of electric blue rams. Ordinary ram females have a pink belly when mature but the colouration of electric blues makes the pink hard to see. You will have to go by fin shape - the dorsal fin of males has the first few rays elongated, and the rear end of the dorsal and anal fins projects past the caudal peduncle. But the fish in the shop will be juveniles which haven't developed adult colouring or fin shape yet.
If you want two females, ignore the fish chasing other fish as they are most likely to be males. If you do decide on a pair, you need to choose carefully. Rams need to choose their own mates; getting just any male and ny female could result in dead fish. You need to watch the shop tank quitely for up to half an hour so the fish forget you are there. The males are the ones that chase other fish. Any other fish allowed to stay near a male is most likely to be a female he 'likes'.