I don't get the pink tips effect often, and it soon reverts to yellow again. Nice plant as a large bush nonetheless. Once trimmed, mine will take a while before growing back into shape, look awesome for a while then grows too long again. A bit frustrating also is its messy weedy growth, shading other species. I guess in a nature aquarium it would be a great choice behind wood or something, but in a fully planted tank I'm considering pogostemon erectus instead (forgot the actual name).