Give your biorb a colourful appeal with these purple coloured kelp plantsr create natural security for your fish while allowing them to be viewed among the stemsr simply place into the aquarium the weighted bottom will ensure the sea fan stays uprightr comes in a pack of twor dimensionsr 26cm mediumr suitable forr r biorbs 30l 60l and 105lr life 30l 45l and 60lr flow 30lr biube and biube purer halo 30l and 60l