2 of our 7 discus have paired up (well atleast we thought) we thought the red jag was male and the red flower was female ... any way they've been shaking at each other and cleaning different surfaces for a while now, we noticed the red jag rubbing up against the heater .. YES IT LAID EGGS!! So we was wrong it's a female -.- BUT the red flower discus just eats them as she's laying them?? Is this normal behaviour?