I have bred severums on several occasions over the years. There is a lot of information on the internet, many that states that they are a little hard to pair up. I have been lucky and have not had that difficulty myself, and I have found them very ready to pair off and spawn. They tend to eat their eggs/fry the first few times, but I have raised fry both with the parents and in a separate tank. A 55g and up tank is best. I have bred them in a community setting, which is interesting to watch (very reminiscent of how a pair of brichardi defend against tank mates) and by themselves. Water conditions, other than being very clean, are not important. They lay their eggs on a slab of stone. When the eggs hatch, the wrigglers are moved to a “pit” like area the parents have created. Feed the fry with baby brine and crushed flake 2-4 times a day. Lots of hiding places and well fed parents will lessen their desire to eat the fry. Bugging the parents unnecessarily will increase the likelihood of the eggs/fry getting eaten. Alternatively, the egg covered slab can be moved to another tank with reasonable circulation to lessen fungus. They have been one of my favorites to spawn – strong parenting skills, nice breeding coloration, fairly easy. At the moment, I have a female green severum in a community tank that has paired off with a Salvini! She lays eggs that become caviar for my clown loaches, but they still display breeding behavior and spawn every few weeks. Hehe – artificial environments make for strange bedfellows!