Most of the eggs hatched 23/6/13 although there were still some (probably around 30) remaining the following morning
As I understand it, the eggs normally hatch in 7 - 10 days, depending on water temperature. These were 10/11 days and whilst not necessarily a major problem these are some things that I suspect may have contributed to the slightly delayed hatching:
- My display tank is located in a room which is not heated overnight - I checked yesterday and the water temperature had reduced to 23 degrees overnight (normally at 25-26 degrees)
- I have the standard moonlight connected to my Tunze controller. My latest reading suggests that no light should be allowed to enter the tank on hatch night or it can delay the hatch.
In the next few days I need to cut some ceramic tiles and place in the tank - hopefully this won't disrupt the parents too much and the next batch of eggs will be laid within the next fortnight.