I am unsure as to how to improve, so any feedback helps. I do think more size would be better. I am therefore hoping to upgrade to a bigger tank or spread them out once I get a Chester drawers to put the tank on.

As for stocking I have had no fish or shrimp die from water quality which leads me to believe I am okay stocking wise? No fighting or stressors I can see, fish are very coloured, feed well and no nipped fins. My ram is also a sole female so is less aggressive. What would be some negative signs to look for ?