I have bought 13 german blue rams, with plans for breeding. I have bought each one from a different shop to help with a stronger line (no inbreeding). They are in a 150ltr and quite happy. Over the last few days, i have noticed a definate 3 pairs. They barely leave each others side and have definate territory. My question is. Should i sell on, the unpaired or are they ok? Obviously, selling the unpaired will give the pairs more space. Please skip the obligatory parameter questions. It's well cycled, and very stable. All good there. I'm just worried that when the pairs breed, keeping the singles will add stress. Any advice welcome.