Cardinals Spawning
The first picture shows a trio swimming side by side, the males have slightly longer dorsal fins and a more pronounced jaw. The males go either side of the female and 'tickle' her with their anal fins when ready to spawn. She then produces the eggs which are fertilized by a male, the eggs are then gathered into one of the males mouths and hatched in there. The male then doesn't eat until the young have been released. When hatched and free swimming the fry are released to fend for themselves, they usually gather in the spines of one of my urchins.

I'm still running the tank skimmerless using algae as my main nutrient export and the inhabitants are extremely happy. I have noticed a large amount of sponges and tunicates appearing which are obviously appreciating the unskimmed water.

At last - the clowns have spawned in view
I have waited months to get a picture of them but they always spawn behind the large leather in the centre of the tank. The tank is still skimmerless and I'm using the various algae as nutrient export.

Both pictures show the male on egg duty, the female is out of shot chasing everything away within a 20inch area. They do tolerate the small yellow tail damsels and the chromis which have also spawned behind the rock on these pictures. I guess there's around 200-300 eggs but they seem to be reducing overnight due to predation.

I will add a photo of the full tank soon to show just how big the corals have grown. The leather in the middle of the shot in the post below has doubled in size and was last measured at 28 inches across!!