Here is one you won't find often: Eriocaulon aquaticum

This is a beautiful erio that gets around 4" with bold spiky leaves. I collected a few specimens myself several years ago and have been growing them in my tanks even since. They are not super fast growing, but once adapted to life in a tank they do pretty well..

They need a fine sandy substrate, lots of ferts (especially iron), lots of light and CO2.

This is a great addition to any plant collection!