Hi. I'm planting a 1 gallon cube for some cherry shrimp. Do I need a filter? I don't know how I could fit a filter on this tank. If not, how often do I have to change the water? The plants I have right now are anubias with its leaves above the water (love the look) and two petite anubias. I'm thinking of a floating plant. I'd love some myrio but I can't get it around here anymore since Petsmart got rid of their plant tanks. Or I love the look of wisteria floating. I have a wisteria plant in my 55 gallon, but it's in bad shape and I can't take any clippings from it right now.
Anyway, so my question is, do I need a filter on a 1 gallon planted shrimp tank?