I'm using an Interpet breeding trap with the spray bar so no problems with jagged edges or flow issues.
I was very suprised to have had a second spawn too, I hope it wasn't the last either!!

Fishboy - I think they were roughly 18mths - 2 years old when I got them. I'm basing this on the sizes of some babies Rob was selling earlier this year. In all honesty I'm not really experienced enough to answer when I think you can expect them to spawn, mine I believe was a rarity at this age. I would think you'd be safe in the knowledge that they'll be showing an interest when they're 2 - 3 years old and if it does happen sooner then it's a bonus.