Hello, I am wondering if someone might be able to help.I have a 120 litre tank with 4 medium sized comets, and 2 small fantails in it.Having set up this tank with plants to begin with, the little beggers have eaten them all and now I am having to put plastic ones in just to give it that underwater feel.What plants could I put in , that would stand up to the fish and their hunger for vege?Also I have read that these fish will eat lettuce.How would you give it too them?Just chopped or blanched or just tear it up and drop it in? Thanks sandman