I have three severum, two equal size ,one smaller. Dont ask me the gender cause ive never been able to figure it out. They all get along well. However, yesterday the two slightly larger of the three have started 'kissing'... they literally lock lips and float/swim around together. Im assumeing it is some type of breading behavior. Am i correct? At what stage in the breeding are they? Is this the beginning or is one about to lay??