So from what I have seen, I have a normal 20 gallon high breeding tank with a sponge filter, heater, piece of driftwood and a breeding cone.My pair has been laying eggs every 9-10 days, but I have not had a successful spawn yet.Should I add some live plants to give them more privacy?If so, which ones?

My second question is that I just purchased another breeding pair off of aquabid and I can see from his pictures that he has the angels in a hatchery in 30 gallon long tanks divided into sections.It looks like the angel pairs are only in a very small portion of the tank.Is that a better way to breed them?