I answered about the inverts in the invert forum,
but you could do a otoclinus and a half dozen medakas or guppies. I have a 1.5g tank in the bath room that contains 5-6 ghost shrimp, 3 neons and 2 lemon tetras, and a clump of ludwigia, it does fine though every few month I have to replace a shrimp or two, that is pretty normal attrition for such short lived species.
but you could do a otoclinus and a half dozen medakas or guppies. I have a 1.5g tank in the bath room that contains 5-6 ghost shrimp, 3 neons and 2 lemon tetras, and a clump of ludwigia, it does fine though every few month I have to replace a shrimp or two, that is pretty normal attrition for such short lived species.
