Elocharis acicularis looks like a lovely plant but how does its size scale in relation to the size of a Mini M tank? Is it more suited as a background plant when compared to naturally shorter/smaller species like Elocharis belem?
imo, e. belem is a superior carpet in almost every tank. the point of a carpet is to be nice and low. plus e. belems leaves curve out after a bit helping to cover up more substrate per leaf then e. acicularis which has relatively straight, vertical leaves.
but they are very similar, and are both true grasses, so you can trim the leaves themselves without killing the leaves.