The first alevins have hatched today at the North Walls school! They were very difficult to spot through the Hoy peaty water! However, the clue was revealed this morning when Jamie and Oscar said they had noticed foam in the tank, a sure sign of the alevins hatching. Class 1 and 2 went to have a look and when looking very closely, Callum noticed some of the eggs rocking as the alevins were wriggling inside their shells! Oscar even spotted an ova with a tail sticking out!