In the paper. under the stress of aggregation and reproduction mechanism of algae. we proposed a modified algae and fish model with aggregation and Allee effect. its main purpose was to further ascertain the dynamic relationship between algae and fish. https://www.ealisboa.com/top-save-RE-DESIGNED-Strikketoy-oppbevaring-Prosjekt-27-Sort-100-Skinn-great-save/