Shrimps -
If you mix varieties of cherry shrimp even of the same colour you'll end up with all low grade with maybe the odd high grade/rili. That's not a problem for keeping them as pets but could affect possible sales.
I've not been away for more than a weekend since I've had shrimps. But you could leave the tank lights on longer before going away to get more algae growing, or use the stone in a container of water on a sunny window ledge method of growing algae before leaving.
If you mix varieties of cherry shrimp even of the same colour you'll end up with all low grade with maybe the odd high grade/rili. That's not a problem for keeping them as pets but could affect possible sales.
I've not been away for more than a weekend since I've had shrimps. But you could leave the tank lights on longer before going away to get more algae growing, or use the stone in a container of water on a sunny window ledge method of growing algae before leaving.