We are new to breeding albino bn plecos but I can tell you what we have learned so far. The father will stay with the eggs; we have a rock he hides in with the eggs. He fans his fins over the eggs so if you see the male fanning, there are probably eggs. A partial water change with cooler water can trigger spawning. I had once read that the mother would eat the eggs/fry but now I don't know that to be true...someone else might be able to give more information there. I do know other fish will snack on the fry. We had kept a previous batch in a mesh box so they were in the same tank. Now we have a separate tank for the plecos and their fry. We used a 29 gal tank with no gravel on the bottom and a sponge filter system for a lower current. They poop a lot so it takes daily cleaning with a turkey baster to keep the fish healthy. Hope this helps some. If you search online, you'll find several sites that have great articles to learn more.
