is it inevitable

[susan2626]

that a mated pair will spawn? I have 2 occelaris very happy with their sebae. I got them last December 29th and they were already a pair then but I don't know how old they were. They rarely leave each others' side, are always "nuzzling" with the female almost always inside the sebae. Will they eventually spawn or is it possible they'll stay 'childless' forever? thanks