I can rename the file but hdf5-group per species has to much side effects. If both species has a different dumping period. At the moment all plugins are independent, if we begin to join output of plugins which not know other plugins this results very fast in conflicts. Also if we begin to implement a clean restart strategy we must begin to create very complex rules who is allowed to delete a file which is shared by different plugins.

We should discuss this in a separate issue because this hurt all plugins.