The temperature should play a role - it must not be too hot. We have the balls initially done in December into the salt water, everything as described. Fascinatingly, the many little creatures that have hatched since.
However, look more like water fleas than as crabs ... Anyway, they have grown a bit and it soon became less and less. After about four weeks there were only four (previously 100) and I thought that was it ...
But behold, one morning it was back to a hundred! Unfortunately, shortly after three of the "big" Four died. Now, after almost two months, which provides a larger "crabs" really exciting out. Is about 1.5cm tall and moves targeted at different speeds and sudden reversals etc. Until now, it was rather simple mosquito larvae with little sense of action.
One child understands by "cancer" another being. This salt crabs look quite different from a storybook cancer. It should prepare the children so there is no disappointment.
The Triops cancers of the cosmos would be the right choice. But before I disgusted myself pretty ...
