I'd like to add one more tip, since it seems to have given my plants a big boost last year - Once our weather starts to warm up, which will be all too soon, I've been fertilizing my Clivia with alfalfa pellets (horse food). I'd highly recommend this as a great soil amendment with some nitrogen that releases very slowly to nourish the plant. If you have a big garden, it's worth it to buy a whole big, 50lb. bag at the feed store, but if you just have a few house plants, you can get a small bag of the same thing at pet stores. It is also sold as rabbit food.
Since we don't re-pot Clivia until it is super-crowded in the pot, amending the soil is a great idea to refresh the soil microbes and add good texture (cellulose fiber) to the potting mix. Otherwise potting soil gets very tired and almost inert as the organic material in it gets broken down or used up by the plant.
Later, towards summer when it really heats up I do add a little bit of time-release fertilizer as well but the alfalfa really gives the plant a nice boost first thing in the spring. I would think it will green up that pale leaf for Veronika in a jiffy.
