not so much on topic, but a reply to Alan:
I'm keeping my c.orientalis fully aquatic. At start I had some problems with that too, even though the tank was perfect for them.
One thing I changed, I removed the filter, it was not the current as the flow was blocked, but the noise the filter made. Two weeks after removing the filter the newts stayed in the water practicly all the time.
Now, all the time.
Sorry to interrupt topic. Great looking setup AJJ. For a moment I thought they were actually taken outdoors.
Joeri