I've got a breeding pair of blue rams, they're easy to get to breed if you have a boy and girl, they aren't treated with hormones and they are a compatible pair. They only live about 2 years max, and take a long time to colour up, so overseas, they are treated with hormones to bring the colour out, which also makes them infertile.
If you do manage to get a pair, then pop them in a well planted tank with low KH, PH about 5.8 - 6.0, about 28-30deg, and feed them well. They like sand as the substrate so they can dig pits, where they take the babies at night time. They pick up sand in their mouths and spit it, and also rub themselves to make a hole. You'll notice the boy chases the girl, and she gets quite pale. When they're about ready to spawn, the girl gets REALLY fat, and really dark (tummy black, sides bright blue), and she will chase him.
They'll lay about 150 eggs on a pot, stone, driftwood or something similar, and will keep everything away from their area. They will lay every 2 - 4 weeks if you remove the eggs. They 'tag team' to keep their eggs safe - mum will go off, eat and have a break, then when dad can see her again, he'll rush up to her, they'll tap noses, then it's his turn to have a swim.
The eggs hatch in about 3 - 4 days (as usual, quicker in warmer temps). The fry are TINY, and stay wigglers for about 4 days. The parents take them to their pit at night and when they start swimming away (they pick them up in their mouths). The fry need to eat TINY food - the muck on the bottom of a planted tank is ideal, or they need green water if you choose to raise them yourself. They can't eat BBS until about 2 weeks old. Microworms about a week after they become free swimming.
Keeping the fry alive is a mission and a half, that's why so many are wild caught or farmed in Malaysia. They're also pretty shoddy parents for the first few (5 or so for mine) spawns, and will eat the eggs or fry if they get spooked.
However, they're really rewarding to raise, and beautiful fish!